627 lines
22 KiB
Text
627 lines
22 KiB
Text
Version 2.0.9 (2022-02-09)
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o BGP: Flowspec validation procedure
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o Babel: MAC authentication support
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o Routing table configuration blocks
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o Optional prefix trie in routing table for faster LPM/interval queries
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o CLI: New 'show route in <prefix>' command
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o Filter: Faster (16-way) prefix sets
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o Filter: MPLS label route attribute
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o Filter: Operators to pick community components
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o Filter: Operators to find minimum and maximum element of lists
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o BGP: New 'free bind' option
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o BGP: Log route updates that were changed to withdraws
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o BGP: Improved 'invalid next hop' error reporting
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o OSPF: Allow ifaces with host address as unnumbered PtP or PtMP ifaces
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o OSPF: All packets on PtP networks should be sent to AllSPFRouters address
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o Scripts for apkg-powered upstream packaging for deb and rpm
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o Support for Blake2s and Blake2b hash functions
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o Security keys / passwords can be entered in hexadecimal digits
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o Memory statistics split into Effective and Overhead
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o Linux: New option 'netlink rx buffer' to specify netlink socket buffer size
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o BSD: Assume onlink flag on ifaces with only host addresses
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Notes:
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For OSPF on PtP network, BIRD now sends all packets to multicast AllSPFRouters
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address (as required in RFC 2328 8.1). This likely breaks setups with multiple
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neighbors on a network configured as PtP, which worked in previous versions.
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Such links should be configured as PtMP.
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Version 2.0.8 (2021-03-18)
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o Automatic channel reloads based on RPKI changes
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o Multiple static routes with the same network
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o Use bitmaps to keep track of exported routes
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o Per-channel debug flags
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o CLI commands show info from multiple protocols
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o Linux: IPv4 routes with IPv6 nexthops
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o Filter: Optimized redesign of prefix sets
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o Filter: Improved type checking of user filters
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o Filter: New src/dst accessors for Flowspec and SADR
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o Filter: New 'weight' route attribute
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o Filter: BGP path mask loop operator
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o Filter: Remove quitbird command
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o RIP: Demand circuit support (RFC 2091)
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o BGP: New 'allow as sets' and 'enforce first as' options
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o BGP: Support for BGP hostname capability
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o BGP: Support for MD5SIG with dynamic BGP
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o BFD: Optional separation of IPv4 / IPv6 BFD instances
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o BFD: Per-peer session options
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o RPKI: Allow build without libSSH
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o RPKI: New 'ignore max length' option
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o OSPF: Redesign of handling of unnumbered PtPs
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o OSPF: Allow key id 0 in authentication
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o Babel: Use onlink flag for routes with unreachable next hop
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o Many bugfixes
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Notes:
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Automatic channel reloads based on RPKI changes are enabled by default,
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but require import table enabled when used in BGP import filter.
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BIRD now uses bitmaps to keep track of exported routes instead of
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re-evaluation of export filters. That should improve speed and accuracy in
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route export handling during reconfiguration, but takes some more memory.
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Per-channel debug logging and some CLI commands (like 'show ospf neighbors')
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defaulting to all protocol instances lead to some minor changes in log and
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CLI output. Caution is recommended when logs or CLI output are monitored by
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scripts.
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Version 2.0.7 (2019-10-11)
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o BGP: Accumulated IGP metric (RFC 7311)
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o Important filter reconfiguration bugfix
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o Several other bugfixes
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Version 2.0.6 (2019-09-10)
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o RAdv: Solicited unicast RAs
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o BGP: Optional Adj-RIB-Out
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o BGP: Extended optional parameters length
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o Filter: Sets and set expressions in path masks
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o Several important bugfixes
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Version 2.0.5 (2019-08-01)
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o OSPF Graceful restart (RFC 3623, RFC 5187)
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o BGP: Dynamic BGP
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o BGP: Promiscuous ASN mode
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o BGP: Mandatory option for channels
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o BFD: Support for VRFs
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o Graceful restart command
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o Redesigned filtering code
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o Many bugfixes
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Notes:
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Previous version introduced an error in handling of OSPF NSSA-LSA, causing
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compatibility issues with proper implementations. The error is fixed in this
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version, therefore there are compatibility issues in OSPF NSSA areas between
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this and previous version.
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Version 2.0.4 (2019-02-27)
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o OSPF: Opaque LSAs (RFC 5250)
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o OSPF: DN-bit handling (RFC 4576)
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o Preferred route counters are back
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o Important BGP bugfix
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o Several bugfixes related to route propagation
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o some minor bugfixes
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Version 2.0.3 (2019-01-05)
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o MRT table dumps (RFC 6396)
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o BGP Long-lived graceful restart
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o BGP: Optional import table (Adj-RIB-In)
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o BGP: Extend 'next hop keep' and 'next hop self' options
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o BGP: Improved VRF support
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o OSPF: Authentication trailer for OSPFv3 (RFC 7166)
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o Babel: New option to randomize router ID
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o Filter: Custom route attributes
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o Filter: Support for src accessor to SADR source prefix
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o Filter: Support for VPN_RD sets
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o Filter: Make ifname attribute modifiable
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o Perf: Protocol to measure BIRD performance internally
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o More verbose error messages in config processing
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o Log file size limit / log rotation
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o Many bugfixes
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Notes:
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Export of routes to RS EBGP (route server) sessions from other sources than
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RS EBGP sessions was changed that ASN is no longer prepended to BGP_PATH in
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that case. The change does not affect regular BGP configurations or regular
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route servers that have only RS EBGP peers.
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For BGP route servers and route reflectors, the default value of option
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'next hop keep' was changed to a more appropriate value.
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Attributes for OSPF and Babel metrics are no longer reset when exported to
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these protocols and could be set anywhere in BIRD. As a result, OSPF metric is
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kept when a route is reannounced between OSPF instances. Also, when route is
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exported to OSPF with both ospf_metric1 and ospf_metric2 attributes it is now
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propagated as OSPF-E2 route instead of as OSPF-E1 route.
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Compiling BIRD with --enable-debug no longer automatically activates debug
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mode (-d option) nor local mode (-l option). Also, debug mode with output to
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file (-D option) no longer not forces foreground mode (-f option).
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The configure script now uses standard option --runstatedir, the old option
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--with-runtimedir is deprecated.
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Version 2.0.2 (2018-03-22)
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o Source-specific routing support for Linux kernel and Babel
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o BGP: New option 'disable after cease'
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o Filter: Allow silent filter execution
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o Filter: Fixed stack overflow in BGP mask expressions.
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o Several bugfixes
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Notes:
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Syntax prefix:netmask for IPv4 prefixes was dropped. Just use prefix/pxlen.
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Version 2.0.1 (2018-01-16)
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o Linux MPLS kernel support
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o Better handling of channels inherited from templates
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o Default EBGP Route Propagation Behavior without Policies (RFC 8212)
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o Many bugfixes
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Notes:
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To satisfy requirements of RFC 8212, external BGP protocols now require
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explicit configuration of import and export policies.
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Version 2.0.0 (2017-12-11)
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o Integrated IPv4 + IPv6 design
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o Support for MPLS next hops
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o Support for VPNv4 and VPNv6 networks
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o Microsecond timers infrastructure
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o Basic VRF support
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o Babel: Support for dual-stack IPv4/IPv6
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o Babel: Many improvements and bugfixes
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o Major BGP protocol redesign
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o Full support for Multiprotocol BGP
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o BGP multicast support (SAFI 2)
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o BGP flowspec support (RFC 5575)
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o BGP with MPLS labels (RFC 3107)
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o BGP MPLS/VPN support (RFC 4364)
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o BGP 6PE - IPv6 NLRI over IPv4 MPLS (RFC 4798)
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o BGP IPv4 NLRI with an IPv6 Next Hop (RFC 5549)
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o BGP Confederations (RFC 5065)
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o BGP Shutdown communication (RFC 8203)
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o BGP: Allow exchanging LOCAL_PREF with eBGP peers
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o BGP: Allow to specify interface for regular sessions
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o OSPF: Support of address families in OSPFv3
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o OSPF: Enable ECMP and Link detection by default
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o RAdv: Support for more specific routes (RFC 4191)
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o RAdv: Proper handling of prefix retraction
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o RIP: Enable ECMP and Link detection by default
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o Redesign of RPKI handling
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o New RPKI-Router protocol
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o Static: Minor overhaul
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o Static: Support for all new route types
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o Kenrel: Default Linux kernel metric changed to 32
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o Kernel: Fix IPv6 ECMP handling with Linux 4.11+
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o Update of show route command
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o BIRD client persistent history
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o New build system
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o Unit tests
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o ...
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Notes:
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Tables are now defined with appropriate net type keyword. Protocols and tables
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are now connected by explicit channels, most related protocol options (table,
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import, export, ...) are now channel options. See doc/bird.conf.example2 for
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configuration examples. Some options were removed/replaced.
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Version 1.6.3 (2016-12-21)
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o Large BGP communities
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o BFD authentication (MD5, SHA1)
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o SHA1 and SHA2 authentication for RIP and OSPF
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o Improved documentation
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o Several bug fixes
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Version 1.6.2 (2016-09-29)
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o Fixes serious bug introduced in the previous version
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Version 1.6.1 (2016-09-22)
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o Support for IPv6 ECMP
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o Better handling of IPv6 tentative addresses
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o Several updates and fixes in Babel protocol
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o Filter: New !~ operator
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o Filter: ASN ranges in bgpmask
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o KRT: New kernel protocol option 'metric'
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o KRT: New route attribute 'krt_scope'
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o Improved BIRD help messages
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o Fixes memory leak in BGP multipath
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o Fixes handling of empty path segments in BGP AS_PATH
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o Several bug fixes
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Version 1.6.0 (2016-04-29)
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o Major RIP protocol redesign
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o New Babel routing protocol
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o BGP multipath support
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o KRT: Add support for plenty of kernel route metrics
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o KRT: Allow more than 256 routing tables
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o Static: Allow to specify attributes for static routes
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o Static: Support for BFD controlled static routes
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o FreeBSD: Setup password for BGP MD5 authentication
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o IO: Remove socket number limit
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o Plenty of bug fixes
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Upgrade notes:
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For RIP, most protocol options were moved to interface blocks.
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Version 1.5.0 (2015-04-20)
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o Major OSPF protocol redesign.
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o OSPFv2 multi-instance extension (RFC 6549).
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o BGP AS-wide unique router ID (RFC 6286).
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o BGP enhanced route refresh (RFC 7313).
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o Link state support in BGP.
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o Latency tracking and internal watchdog.
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o Uses high port range for BFD on BSD.
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o Increase max symbol length to 64.
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o Allows to define unnamed protocols from templates.
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o Fixes two serious bugs in BGP.
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o Several bugfixes and minor improvements.
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o Several minor option changes:
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- OSPF: Protocol-wide 'instance id' option added.
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- BGP: Parameters to option 'neighbor' extended.
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- BGP: Separate option 'interface' added.
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- BGP: Option 'start delay time' renamed to 'connect delay time'.
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- BGP: Option 'route limit' deprecated.
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Upgrade notes:
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For OSPF, there are deep internal changes, but user-visible changes
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are limited to log messages and minor changes in formatting of command
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output.
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For BGP, version 1.5.0 is essentially a minor release. There are two
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deprecated options ('start delay time' and 'route limit') and some
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minor formatting changes.
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Version 1.4.5 (2014-10-06)
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o New 'show route noexport' command option.
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o Port option for BGP sessions.
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o Better constant handling in set literals.
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o Better rate filtering of log messages.
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o Several minor bugfixes.
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Version 1.4.4 (2014-07-09)
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o Extended OSPF multipath support.
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o Default router preference for RAdv.
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o Significant changes in socket layer.
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o Important bugfix in BGP.
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o Several minor bugfixes.
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Version 1.4.3 (2014-04-14)
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o Important bugfix in IPv6 BGP.
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Version 1.4.2 (2014-04-02)
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o Important bugfix in BFD.
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Version 1.4.1 (2014-03-31)
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o BGP add-path support (RFC draft).
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o BGP graceful restart (RFC 4724).
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o OSPF: many changes in socket layer.
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o OSPF: support for secondary addresses in BSD.
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o OSPF: names for vlink pseudointerfaces (vlinkX).
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o Several bugfixes.
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Version 1.4.0 (2013-11-25)
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o BFD protocol (RFC 5880).
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o BFD support for OSPF and BGP.
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o New 'allow local as' option for BGP.
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o Filters allows setting gw, ifname and ifindex.
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o Filter operator 'delete/filter' extended to bgp_paths.
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o Filter operator 'len' extended to [e]clists.
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o BIRD client now allows shorthands for noninteractive commands.
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o Flag -P for PID file support.
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o Flag -f added to force BIRD to run in foreground.
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o Protocol export/import/receive limits are checked during reconfiguration.
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o Several bugfixes and minor improvements.
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o Several minor but incompatible changes:
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- IBGP is multihop by default.
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- Changes primary address selection on BSD to the first one.
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- Integers in filters are handled as unsigned.
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- ISO 8601 time formats used by default.
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- Import of device routes from kernel protocol allowed.
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- Last state change now tracks just protocol state change.
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- Minor changes to default router ID calculation.
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Version 1.3.11 (2013-07-27)
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o OSPF stub router option (RFC 3137).
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o TTL security for OSPF and RIP.
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o Protocol packet priority and traffic class handling.
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o Multiple routing tables support for FreeBSD and OpenBSD.
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o Extends constants to all filter data types.
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o Implements eval command.
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o 'bgppath ~ int set' filter operation.
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o Several bugfixes.
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Version 1.3.10 (2013-04-30)
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o Lightweight BIRD client for embedded environments.
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o Dynamic IPv6 router advertisements.
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o New 'next hop keep' option for BGP.
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o Smart default routing table for 'show route export/preexport/protocol'.
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o Automatic router ID selection could be configured to use address of loopback.
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o Allows configured global addresses of NBMA neighbors in OSPFv3.
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o Allows BIRD commands from UNIX shell even in restricted mode.
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o Route limits inherited from templates can be disabled.
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o Symbol names enclosed by apostrophes can contain dots.
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o Several bugfixes.
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Version 1.3.9 (2013-01-11)
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o BIRD can be configured to keep and show filtered routes.
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o Separate receive and import limits.
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o Several new reconfiguration cmd options (undo, timeout, check).
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o Configurable automatic router ID selection.
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o Dragonfly BSD support.
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o Fixed OSPFv3 vlinks.
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o Several minor bugfixes.
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Version 1.3.8 (2012-08-07)
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o Generalized import and export route limits.
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o RDNSS and DNSSL support for RAdv.
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o Include in config file support wildcards.
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o History deduplication in BIRD client.
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o New route attributes krt_source, krt_metric.
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o Different instance ID support for OSPFv3.
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o Real broadcast mode for OSPFv2.
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o Several minor bugfixes.
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Version 1.3.7 (2012-03-22)
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o Route Origin Authorization basics.
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o RIPng working again.
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o Extended clist operations in filters.
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o Fixes several bugs in BSD iface handling.
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o Several minor bugfixes and enhancements.
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Version 1.3.6 (2012-01-20)
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o Important bugfix in BGP.
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Version 1.3.5 (2012-01-10)
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o Protocol templates.
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o Deterministic MED option for BGP.
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o Support for link-local addresses in BGP and static protocols.
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o Several bugfixes.
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Version 1.3.4 (2011-10-10)
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o Static recursive routes.
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o Several bugfixes.
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Version 1.3.3 (2011-09-11)
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o OSPF NSSA.
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o BGP extended communities.
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o BGP TTL security.
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o Configuration option "include" added (based on patch from Alexander V. Chernikov).
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o Some minor bugfixes.
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Version 1.3.2 (2011-07-08)
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o Allows run with restricted privileges.
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o Community list filter operation.
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o Fixes several problems in filter syntax:
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- Fixes several conflicts in the grammar.
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- Fixes a bug in (a..b, c) pair patterns.
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- Makes pair patterns orthogonal.
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- Allows term expressions in pair patterns without additional ( ).
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- Allows several comma separated values in switch cases.
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o Many bugfixes.
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Version 1.3.1 (2011-05-02)
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o Added Linux kernel route attributes krt_prefsrc and krt_realm.
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o Added BGP option 'med metric' related to MED handling.
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o Allows to use constants from /etc/iproute2/rt_* files.
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o Several bugfixes.
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Version 1.3.0 (2011-03-31)
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o Proper iBGP (can be used with IGP).
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o Multipath support (OSPF and static).
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o L2 link state detection.
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o IPv6 router advertisements.
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o Much improved OSPF reconfiguration.
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o Point-to-MultiPoint interfaces (OSPF).
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o Minor changes and improvements in config file grammar.
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o Better community list matching.
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o Changes default behavior of BGP IPv6 socket to v6only.
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Use 'listen bgp dual' for the old behavior.
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o Changes default for handling missing link-local addresses on
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route servers. Use 'missing lladdr drop' for the old behavior.
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o Important bugfix for OSPF.
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o Several minor bugfixes.
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Version 1.2.5 (2010-10-10)
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o Several mostly minor bugfixes.
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Version 1.2.4 (2010-08-03)
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o Added 'show memory' command.
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o Important bugfix in IPv6 BGP.
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o Several minor bugfixes.
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Version 1.2.3 (2010-06-01)
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o Pattern matching for community lists.
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o Many fixes in OSPF protocol (esp. in multi-areas and vlinks).
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o Several minor bugfixes.
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Version 1.2.2 (2010-04-10)
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o Much better BSD kernel support (IPv6, alien routes, ...).
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o Deep OSPF socket changes, fixes OSPFv2/v3 behavior on BSD.
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o OSPFv2 in Linux now supports more non-stub IP prefixes
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on one physical iface.
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o Export of device routes to the kernel is more restricted.
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o Routes with strange scope not allowed in BIRD routing tables.
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o New filterable route attributes bgp_originator_id,
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bgp_cluster_list and ospf_router_id.
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o Restricted read-only CLI (option -r).
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o Pattern matching for 'show protocols' command.
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o BGP protocol details in 'show protocols all' command.
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o Configurable syslog name (and default on IPv6 changed).
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o Statistic counters for pipes were fixed.
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o Many bugfixes in BGP, OSPF, filters, ...
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Version 1.2.1 (2010-02-11)
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o Option 'interpret communities' allows to override implicit handling
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of well-known communities.
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o 'configure' command uses route reload when filters change.
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o Adds router ID of advertising router as OSPF route attribute.
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o 'show route' command indicates primary route and shows OSPF Router ID.
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o Configurable date/time formats.
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o Symbol names can be enclosed by '' and so include hyphen and start with number.
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o Several minor bugfixes.
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Version 1.2.0 (2010-01-05)
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o Implements OSPFv3 (IPv6 support for OSPF). Because the code is
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shared with OSPFv2 and there were deep changes in it, we suggest
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caution during upgrade to OSPF users. Some advanced features
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(like NSSA, vlinks and authentication) are not yet implemented.
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o Implements MRTdump - binary logging protocol compatible with other
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routing daemons. Only BGP part of MRTdump is yet implemented.
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o Changes default value of BGP attribute LOCAL_PREF from 0 to 100.
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Use 'default bgp_local_pref 0' BGP protocol option for the old
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behavior. The new value is suggested by RFC 4277.
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o Changes default mode of pipes from opaque to transparent.
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Use 'mode opaque' protocol option if the old behavior is needed.
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Opaque pipe mode is deprecated and might be removed in the future.
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Version 1.1.7 (2009-12-20)
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o Implements BGP Route Refresh (RFC 2918).
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o Implements route reload command.
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o Deep changes and bugfixes in pipe protocol.
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o Bugfix in OSPF premature aging of LSA.
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o Bugfix in OSPF next hop calculation.
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o Bugfix in core related to route withdraws.
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o Several minor bugfixes.
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|
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Version 1.1.6 (2009-11-19)
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o Implements RFC 5004 - prefer older external routes.
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o There is a change how route servers handle missing IPv6 link
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local addresses in next hop atribute - see 'missing lladdr'
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option.
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o Several minor features (description field, parse check option).
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o Several minor bugfixes.
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|
|
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Version 1.1.5 (2009-10-29)
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o Better scalability of BGP.
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o New accessors for AS path - first and last.
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o Allows to set protocol-specific router ID.
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o Allows import kernel 'onlink' routes.
|
|
o Endianity check in buildsystem changed.
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Version 1.1.4 (2009-10-02)
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o BGP passive option.
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o Several minor bugfixes.
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|
|
|
Version 1.1.3 (2009-09-11)
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|
o Bugfix in core
|
|
o Bugfix in BGP related to AS2->AS4 conversion.
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|
|
|
Version 1.1.2 (2009-08-23)
|
|
o Allow more kernel routing tables in IPv6.
|
|
o Bugfix in core
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|
|
|
Version 1.1.1 (2009-08-14)
|
|
o 'more' style paging in BIRD client.
|
|
o Important core bug fixed.
|
|
o Portability to non-x86 related bugfixes.
|
|
o As usual, miscellaneous bugfixes.
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|
|
|
Version 1.1.0 (2009-06-28)
|
|
o Parametrized pair and path mask expressions in the filter language.
|
|
o Transparent pipe mode allows to implement BGP route server with
|
|
independent route policy for each peer.
|
|
o Kernel route table synchronization does not allow overwriting
|
|
of alien routes.
|
|
o Configurable BGP import route limits.
|
|
o During BGP error delay, incoming connections are rejected.
|
|
o BGP route statistics.
|
|
o Better support for multiple network addresses on OSPF interfaces.
|
|
o As usual, miscellaneous bugfixes.
|
|
|
|
Version 1.0.15 (2009-05-25)
|
|
o FreeBSD and NetBSD port renewed. OpenBSD port introduced.
|
|
o import/preimport 'show route' modifiers was renamed to export/preexport
|
|
for consistency with filters.
|
|
o Minor change in the grammar of 'interface' config option.
|
|
o Many bugfixes in IPv6 BGP.
|
|
o As usual, miscellaneous bugfixes.
|
|
|
|
Version 1.0.14 (2009-04-28)
|
|
o A lot of bugfixes in BGP, OSPF and core.
|
|
o A bugfix in filters in the pipe protocol. It is recommended to
|
|
check whether the new behavior of used pipe filters is consistent
|
|
with expectations.
|
|
o Reimplementation of prefix sets and a slight change in the meaning
|
|
of some prefix set patterns.
|
|
|
|
Version 1.0.13 (2009-03-14)
|
|
o A lot of bugfixes in BGP, OSPF and core
|
|
o A new syntax for BGP masks
|
|
|
|
Version 1.0.12 (2008-11-12)
|
|
o new BGP features: BGP MD5, ASN32, BGP route reflector
|
|
o BGP bugfixes
|
|
|
|
...
|
|
|
|
Version 1.0.9 (2004-07-15)
|
|
o Minor bugfix in RIP
|
|
o A lot of OSPF code rewritten, OSPF supports multiple areas,
|
|
virtual links, MD5 authentication. It is fully compatible
|
|
with rfc2329.
|
|
|
|
Version 1.0.8 (2004-06-07)
|
|
o A lot of bug fixes in RIP, OSPF and BGP (thanx to Andreas Steinmetz)
|
|
o FreeBSD and NetBSD port introduced
|
|
o Complete code clean up
|
|
|
|
Version 1.0.7 (2003-08-20)
|
|
o OSPF bug fixes
|
|
|
|
Version 1.0.6 (2003-04-06)
|
|
|
|
o No more byte order problems in RIP authentication. Thanks to
|
|
Eric Leblond <eleblond@init-sys.com> for a patch.
|
|
o Fixed interoperability problems with Cisco and Zebra when talking
|
|
IPv6 BGP.
|
|
o Handle more primary addresses with different scopes gracefully.
|
|
IPv6 needs that.
|
|
o Comparison of prefixes in filters doesn't ignore their lengts.
|
|
o As usually, OSPF bug fixes.
|
|
o Documentation building tools now work with recent linuxdoc-tools.
|
|
|
|
Version 1.0.5 (2001-06-09)
|
|
|
|
o Minor cleanups in the libraries.
|
|
o Removed a couple of warnings when compiling with newer glibc.
|
|
o OSPF bug fixes.
|
|
|
|
Version 1.0.4 (2000-09-04)
|
|
|
|
o Fixed a serious bug in 1.0.3.
|
|
|
|
Version 1.0.3 (2000-09-03)
|
|
|
|
o OSPF works better on NBMA networks. Some configuration tags added.
|
|
|
|
Version 1.0.2 (2000-08-24)
|
|
|
|
o Minor bug fixes to OSPF.
|
|
|
|
Version 1.0.1 (2000-06-22)
|
|
|
|
o Updated documentation and fixed a couple of bugs.
|
|
|
|
Version 1.0.0 (2000-06-09)
|
|
|
|
o First stable release.
|
|
|
|
Version 0.0.0 (2000-05-13)
|
|
|
|
o First public development release.
|