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Doc: Fix documentation of BGP gateway option

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Thanks to Nico Schottelius for the bugreport.
This commit is contained in:
Ondrej Zajicek (work) 2019-12-16 18:05:56 +01:00
parent c132acae36
commit 3232d17186
1 changed files with 5 additions and 6 deletions
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11
doc/bird.sgml
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@ -2696,12 +2696,11 @@ be used in explicit configuration.
For received routes, their <cf/gw/ (immediate next hop) attribute is
computed from received <cf/bgp_next_hop/ attribute. This option
specifies how it is computed. Direct mode means that the IP address from
<cf/bgp_next_hop/ is used if it is directly reachable, otherwise the
neighbor IP address is used. Recursive mode means that the gateway is
computed by an IGP routing table lookup for the IP address from
<cf/bgp_next_hop/. Note that there is just one level of indirection in
recursive mode - the route obtained by the lookup must not be recursive
itself, to prevent mutually recursive routes.
<cf/bgp_next_hop/ is used and must be directly reachable. Recursive mode
means that the gateway is computed by an IGP routing table lookup for
the IP address from <cf/bgp_next_hop/. Note that there is just one level
of indirection in recursive mode - the route obtained by the lookup must
not be recursive itself, to prevent mutually recursive routes.
Recursive mode is the behavior specified by the BGP
standard. Direct mode is simpler, does not require any routes in a