diff --git a/filter/config.Y b/filter/config.Y
index 92ac6fa5..7e9f4104 100644
--- a/filter/config.Y
+++ b/filter/config.Y
@@ -205,7 +205,6 @@ f_generate_ec(u16 kind, struct f_inst *tk, struct f_inst *tv)
       cf_error("Can't operate with key of non-integer/IPv4 type in EC constructor");
   }
 
-#ifndef IPV6
   /* IP->Quad implicit conversion */
   else if (tk->code == 'C') {
     c1 = 1;
@@ -223,7 +222,6 @@ f_generate_ec(u16 kind, struct f_inst *tk, struct f_inst *tv)
     else
       cf_error("Can't operate with key of non-integer/IPv4 type in EC constructor");
   }
-#endif
 
   if (tv->code == 'c') {
     if (tv->aux != T_INT)
diff --git a/lib/net.c b/lib/net.c
index b851871a..09f23c7a 100644
--- a/lib/net.c
+++ b/lib/net.c
@@ -31,15 +31,15 @@ net_format(const net_addr *N, char *buf, int buflen)
 {
   net_addr_union *n = (void *) N;
 
-  /* FIXME: quick hack */
+  /* XXXX fix %I vs %R */
   switch (n->n.type)
   {
   case NET_IP4:
-    return bsnprintf(buf, buflen, "%I/%d", n->ip4.prefix, n->ip4.pxlen);
+    return bsnprintf(buf, buflen, "%R/%d", n->ip4.prefix, n->ip4.pxlen);
   case NET_IP6:
     return bsnprintf(buf, buflen, "%I/%d", n->ip6.prefix, n->ip6.pxlen);
   case NET_VPN4:
-    return bsnprintf(buf, buflen, "%u:%u %I/%d", (u32) (n->vpn4.rd >> 32), (u32) n->vpn4.rd, n->vpn4.prefix, n->vpn4.pxlen);
+    return bsnprintf(buf, buflen, "%u:%u %R/%d", (u32) (n->vpn4.rd >> 32), (u32) n->vpn4.rd, n->vpn4.prefix, n->vpn4.pxlen);
   case NET_VPN6:
     return bsnprintf(buf, buflen, "%u:%u %I/%d", (u32) (n->vpn6.rd >> 32), (u32) n->vpn6.rd, n->vpn6.prefix, n->vpn6.pxlen);
   }
diff --git a/lib/net.h b/lib/net.h
index ee9b382e..9439c6db 100644
--- a/lib/net.h
+++ b/lib/net.h
@@ -199,20 +199,20 @@ static inline void net_copy_vpn6(net_addr_vpn6 *dst, const net_addr_vpn6 *src)
 
 
 static inline u32 net_hash_ip4(const net_addr_ip4 *n)
-{ return ip4_hash(n->prefix) ^ ((u32) n->pxlen << 26); }
+{ return ip4_hash32(n->prefix) ^ ((u32) n->pxlen << 26); }
 
 static inline u32 net_hash_ip6(const net_addr_ip6 *n)
-{ return ip6_hash(n->prefix) ^ ((u32) n->pxlen << 26); }
+{ return ip6_hash32(n->prefix) ^ ((u32) n->pxlen << 26); }
 
 /* XXXX */
 static inline u32 u64_hash(u32 a)
 { return u32_hash(a); }
 
 static inline u32 net_hash_vpn4(const net_addr_vpn4 *n)
-{ return ip4_hash(n->prefix) ^ ((u32) n->pxlen << 26) ^ u64_hash(n->rd); }
+{ return ip4_hash32(n->prefix) ^ ((u32) n->pxlen << 26) ^ u64_hash(n->rd); }
 
 static inline u32 net_hash_vpn6(const net_addr_vpn6 *n)
-{ return ip6_hash(n->prefix) ^ ((u32) n->pxlen << 26) ^ u64_hash(n->rd); }
+{ return ip6_hash32(n->prefix) ^ ((u32) n->pxlen << 26) ^ u64_hash(n->rd); }
 
 
 static inline int net_validate_ip4(const net_addr_ip4 *n)
diff --git a/lib/printf.c b/lib/printf.c
index 9db5363b..071fc953 100644
--- a/lib/printf.c
+++ b/lib/printf.c
@@ -292,9 +292,13 @@ int bvsnprintf(char *buf, int size, const char *fmt, va_list args)
 		case 'I': {
 			ip_addr a = va_arg(args, ip_addr);
 			if (flags & SPECIAL)
-				ipa_ntox(a, ipbuf);
+				ip6_ntox(ipa_to_ip6(a), ipbuf);
 			else {
-				ipa_ntop(a, ipbuf);
+				// XXXX better IPv4 / IPv6 distinction
+				if (ipa_is_ip4(a))
+					ip4_ntop(ipa_to_ip4(a), ipbuf);
+				else
+					ip6_ntop(ipa_to_ip6(a), ipbuf);
 				if (field_width == 1)
 					field_width = (ipa_is_ip4(a) ? IP4_MAX_TEXT_LENGTH : IP6_MAX_TEXT_LENGTH);
 			}
@@ -319,11 +323,7 @@ int bvsnprintf(char *buf, int size, const char *fmt, va_list args)
 		/* Router/Network ID - essentially IPv4 address in u32 value */
 		case 'R':
 			x = va_arg(args, u32);
-			bsprintf(ipbuf, "%d.%d.%d.%d",
-				 ((x >> 24) & 0xff),
-				 ((x >> 16) & 0xff),
-				 ((x >> 8) & 0xff),
-				 (x & 0xff));
+			ip4_ntop(ip4_from_u32(x), ipbuf);
 			s = ipbuf;
 			goto str;
 
diff --git a/lib/socket.h b/lib/socket.h
index fbea92aa..b067eb54 100644
--- a/lib/socket.h
+++ b/lib/socket.h
@@ -67,19 +67,15 @@ void sk_set_tbsize(sock *s, uint val);	/* Resize TX buffer, keeping content */
 void sk_set_tbuf(sock *s, void *tbuf);	/* Switch TX buffer, NULL-> return to internal */
 void sk_dump_all(void);
 
+static inline int sk_is_ipv4(sock *s)
+{ return s->af == AF_INET; }
+
+static inline int sk_is_ipv6(sock *s)
+{ return s->af == AF_INET6; }
+
 static inline int sk_send_buffer_empty(sock *sk)
 { return sk->tbuf == sk->tpos; }
 
-
-#ifdef IPV6
-#define sk_is_ipv4(X) 0
-#define sk_is_ipv6(X) 1
-#else
-#define sk_is_ipv4(X) 1
-#define sk_is_ipv6(X) 0
-#endif
-
-
 int sk_setup_multicast(sock *s);	/* Prepare UDP or IP socket for multicasting */
 int sk_join_group(sock *s, ip_addr maddr);	/* Join multicast group on sk iface */
 int sk_leave_group(sock *s, ip_addr maddr);	/* Leave multicast group on sk iface */
diff --git a/lib/unaligned.h b/lib/unaligned.h
index dc777fbf..130b2479 100644
--- a/lib/unaligned.h
+++ b/lib/unaligned.h
@@ -17,6 +17,7 @@
  *  if possible.
  */
 
+#include "lib/endian.h"
 #include "lib/string.h"
 
 static inline u16
diff --git a/nest/iface.c b/nest/iface.c
index 3eaa5ebd..e9f55f0a 100644
--- a/nest/iface.c
+++ b/nest/iface.c
@@ -532,10 +532,8 @@ ifa_update(struct ifa *a)
 	break;
       }
 
-#ifndef IPV6
-  if ((i->flags & IF_BROADCAST) && !ipa_nonzero(a->brd))
+  if ((a->prefix.type == NET_IP4) && (i->flags & IF_BROADCAST) && ipa_zero(a->brd))
     log(L_ERR "Missing broadcast address for interface %s", i->name);
-#endif
 
   b = mb_alloc(if_pool, sizeof(struct ifa));
   memcpy(b, a, sizeof(struct ifa));
diff --git a/nest/rt-fib.c b/nest/rt-fib.c
index ff7f5c00..474236e0 100644
--- a/nest/rt-fib.c
+++ b/nest/rt-fib.c
@@ -59,7 +59,7 @@ static void
 fib_ht_alloc(struct fib *f)
 {
   f->hash_size = 1 << f->hash_order;
-  f->hash_shift = 16 - f->hash_order;
+  f->hash_shift = 32 - f->hash_order;
   if (f->hash_order > HASH_HI_MAX - HASH_HI_STEP)
     f->entries_max = ~0;
   else
@@ -168,7 +168,7 @@ fib_rehash(struct fib *f, int step)
     struct fib_node *e = f->hash_table[FIB_HASH(f, a, t)];		\
     while (e && !net_equal_##t(CAST(t) e->addr, CAST(t) a))		\
       e = e->next;							\
-    fib_node_to_user(f, e);						\
+    e ? fib_node_to_user(f, e) : NULL;					\
   })
 
 #define FIB_INSERT(f,a,e,t)						\
@@ -247,7 +247,7 @@ fib_insert(struct fib *f, const net_addr *a, struct fib_node *e)
 void *
 fib_get(struct fib *f, const net_addr *a)
 {
-  char *b = fib_find(f, a);
+  void *b = fib_find(f, a);
   if (b)
     return b;
 
@@ -256,7 +256,7 @@ fib_get(struct fib *f, const net_addr *a)
   else
     b = mb_alloc(f->fib_pool, f->node_size + a->length);
 
-  struct fib_node *e = (void *) (b + f->node_offset);
+  struct fib_node *e = fib_user_to_node(f, b);
   e->readers = NULL;
   e->flags = 0;
   e->uid = 0;
@@ -522,6 +522,7 @@ found:
 void
 fib_check(struct fib *f)
 {
+#if 0
   uint i, ec, lo, nulls;
 
   ec = 0;
@@ -557,6 +558,8 @@ fib_check(struct fib *f)
     }
   if (ec != f->entries)
     bug("fib_check: invalid entry count (%d != %d)", ec, f->entries);
+#endif
+  return;
 }
 
 /*
diff --git a/proto/ospf/config.Y b/proto/ospf/config.Y
index e8fb7f2e..6d8fa755 100644
--- a/proto/ospf/config.Y
+++ b/proto/ospf/config.Y
@@ -130,21 +130,27 @@ CF_KEYWORDS(ELIGIBLE, POLL, NETWORKS, HIDDEN, VIRTUAL, CHECK, LINK, ONLY, BFD)
 CF_KEYWORDS(RX, BUFFER, LARGE, NORMAL, STUBNET, HIDDEN, SUMMARY, TAG, EXTERNAL)
 CF_KEYWORDS(WAIT, DELAY, LSADB, ECMP, LIMIT, WEIGHT, NSSA, TRANSLATOR, STABILITY)
 CF_KEYWORDS(GLOBAL, LSID, ROUTER, SELF, INSTANCE, REAL, NETMASK, TX, PRIORITY, LENGTH)
-CF_KEYWORDS(SECONDARY, MERGE, LSA, SUPPRESSION)
+CF_KEYWORDS(SECONDARY, MERGE, LSA, SUPPRESSION, OSPF2, OSPF3)
 
 %type <ld> lsadb_args
-%type <i> nbma_eligible
+%type <i> ospf_variant nbma_eligible
 
 CF_GRAMMAR
 
 CF_ADDTO(proto, ospf_proto '}' { ospf_proto_finish(); } )
 
-ospf_proto_start: proto_start OSPF {
+ospf_variant:
+   OSPF  { $$ = 1; }
+ | OSPF2 { $$ = 1; }
+ | OSPF3 { $$ = 0; }
+ ;
+
+ospf_proto_start: proto_start ospf_variant {
      this_proto = proto_config_new(&proto_ospf, $1);
      init_list(&OSPF_CFG->area_list);
      init_list(&OSPF_CFG->vlink_list);
      OSPF_CFG->tick = OSPF_DEFAULT_TICK;
-     OSPF_CFG->ospf2 = OSPF_IS_V2;
+     OSPF_CFG->ospf2 = $2;
   }
  ;
 
diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index 983f76f1..8008e4d8 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -648,6 +648,9 @@ ospf_reconfigure(struct proto *P, struct proto_config *c)
   if (proto_get_router_id(c) != p->router_id)
     return 0;
 
+  if (p->ospf2 != new->ospf2)
+    return 0;
+
   if (p->rfc1583 != new->rfc1583)
     return 0;
 
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index 3e96b511..f4f91de1 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -37,14 +37,6 @@
 #endif
 
 
-#ifdef IPV6
-#define OSPF_IS_V2 0
-#else
-#define OSPF_IS_V2 1
-#endif
-
-// FIXME: MAX_PREFIX_LENGTH
-
 #define OSPF_TRACE(flags, msg, args...) \
   do { if ((p->p.debug & flags) || OSPF_FORCE_DEBUG) \
     log(L_TRACE "%s: " msg, p->p.name , ## args ); } while(0)
@@ -837,16 +829,12 @@ static inline void ospf_notify_net_lsa(struct ospf_iface *ifa)
 static inline void ospf_notify_link_lsa(struct ospf_iface *ifa)
 { ifa->update_link_lsa = 1; }
 
-
-#define ospf_is_v2(X) OSPF_IS_V2
-#define ospf_is_v3(X) (!OSPF_IS_V2)
-/*
 static inline int ospf_is_v2(struct ospf_proto *p)
 { return p->ospf2; }
 
 static inline int ospf_is_v3(struct ospf_proto *p)
 { return ! p->ospf2; }
-*/
+
 static inline int ospf_get_version(struct ospf_proto *p)
 { return ospf_is_v2(p) ? 2 : 3; }
 
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index 0adc3871..0031089c 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -1428,7 +1428,7 @@ loop:
 static void *
 ospf_fib_route(struct fib *f, ip_addr a)
 {
-  if (ospf_is_v2(p))
+  if (f->addr_type == NET_IP4)
     return ospf_fib_route_ip4(f, ipa_to_ip4(a), IP4_MAX_PREFIX_LENGTH);
   else
     return ospf_fib_route_ip6(f, ipa_to_ip6(a), IP6_MAX_PREFIX_LENGTH);
diff --git a/proto/rip/config.Y b/proto/rip/config.Y
index 29ea7eb1..d81c42d7 100644
--- a/proto/rip/config.Y
+++ b/proto/rip/config.Y
@@ -32,24 +32,29 @@ rip_check_auth(void)
 
 CF_DECLS
 
-CF_KEYWORDS(RIP, ECMP, LIMIT, WEIGHT, INFINITY, METRIC, UPDATE, TIMEOUT,
+CF_KEYWORDS(RIP, RIPNG, ECMP, LIMIT, WEIGHT, INFINITY, METRIC, UPDATE, TIMEOUT,
 	    GARBAGE, PORT, ADDRESS, MODE, BROADCAST, MULTICAST, PASSIVE,
 	    VERSION, SPLIT, HORIZON, POISON, REVERSE, CHECK, ZERO, TIME, BFD,
 	    AUTHENTICATION, NONE, PLAINTEXT, CRYPTOGRAPHIC, MD5, TTL, SECURITY,
 	    RX, TX, BUFFER, LENGTH, PRIORITY, ONLY, LINK, RIP_METRIC, RIP_TAG)
 
-%type <i> rip_auth
+%type <i> rip_variant rip_auth
 
 CF_GRAMMAR
 
 CF_ADDTO(proto, rip_proto)
 
-rip_proto_start: proto_start RIP
+rip_variant:
+   RIP   { $$ = 1; }
+ | RIPNG { $$ = 0; }
+ ;
+
+rip_proto_start: proto_start rip_variant
 {
   this_proto = proto_config_new(&proto_rip, $1);
   init_list(&RIP_CFG->patt_list);
 
-  RIP_CFG->rip2 = RIP_IS_V2;
+  RIP_CFG->rip2 = $2;
   RIP_CFG->infinity = RIP_DEFAULT_INFINITY;
 
   RIP_CFG->min_timeout_time = 60;
diff --git a/proto/rip/packets.c b/proto/rip/packets.c
index 85f0bea5..2e83a463 100644
--- a/proto/rip/packets.c
+++ b/proto/rip/packets.c
@@ -736,7 +736,8 @@ rip_open_socket(struct rip_iface *ifa)
   sk->tos = ifa->cf->tx_tos;
   sk->priority = ifa->cf->tx_priority;
   sk->ttl = ifa->cf->ttl_security ? 255 : 1;
-  sk->flags = SKF_LADDR_RX | ((ifa->cf->ttl_security == 1) ? SKF_TTL_RX : 0);
+  sk->flags = SKF_LADDR_RX | (rip_is_ng(p) ? SKF_V6ONLY : 0) |
+    ((ifa->cf->ttl_security == 1) ? SKF_TTL_RX : 0);
 
   /* sk->rbsize and sk->tbsize are handled in rip_iface_update_buffers() */
 
diff --git a/proto/rip/rip.c b/proto/rip/rip.c
index d8c3b6a8..f90d7711 100644
--- a/proto/rip/rip.c
+++ b/proto/rip/rip.c
@@ -1097,11 +1097,12 @@ rip_start(struct proto *P)
   struct rip_config *cf = (void *) (P->cf);
 
   init_list(&p->iface_list);
-  fib_init(&p->rtable, P->pool, rip_is_v2(p) ? NET_IP4 : NET_IP6,
+  fib_init(&p->rtable, P->pool, cf->rip2 ? NET_IP4 : NET_IP6,
 	   sizeof(struct rip_entry), OFFSETOF(struct rip_entry, n), 0, NULL);
   p->rte_slab = sl_new(P->pool, sizeof(struct rip_rte));
   p->timer = tm_new_set(P->pool, rip_timer, p, 0, 0);
 
+  p->rip2 = cf->rip2;
   p->ecmp = cf->ecmp;
   p->infinity = cf->infinity;
   p->triggered = 0;
@@ -1121,6 +1122,9 @@ rip_reconfigure(struct proto *P, struct proto_config *c)
   struct rip_config *new = (void *) c;
   // struct rip_config *old = (void *) (P->cf);
 
+  if (new->rip2 != p->rip2)
+    return 0;
+
   if (new->infinity != p->infinity)
     return 0;
 
diff --git a/proto/rip/rip.h b/proto/rip/rip.h
index 97c5ab3f..d1c9933c 100644
--- a/proto/rip/rip.h
+++ b/proto/rip/rip.h
@@ -27,12 +27,6 @@
 #include "lib/timer.h"
 
 
-#ifdef IPV6
-#define RIP_IS_V2 0
-#else
-#define RIP_IS_V2 1
-#endif
-
 #define RIP_V1			1
 #define RIP_V2			2
 
@@ -98,6 +92,7 @@ struct rip_proto
   slab *rte_slab;			/* Slab for internal routes (struct rip_rte) */
   timer *timer;				/* Main protocol timer */
 
+  u8 rip2;				/* RIPv2 (IPv4) or RIPng (IPv6) */
   u8 ecmp;				/* Maximum number of nexthops in ECMP route, or 0 */
   u8 infinity;				/* Maximum metric value, representing infinity */
   u8 triggered;				/* Logical AND of interface want_triggered values */
@@ -190,16 +185,11 @@ struct rip_rte
 #define EA_RIP_METRIC		EA_CODE(EAP_RIP, 0)
 #define EA_RIP_TAG		EA_CODE(EAP_RIP, 1)
 
-#define rip_is_v2(X) RIP_IS_V2
-#define rip_is_ng(X) (!RIP_IS_V2)
-
-/*
 static inline int rip_is_v2(struct rip_proto *p)
 { return p->rip2; }
 
 static inline int rip_is_ng(struct rip_proto *p)
 { return ! p->rip2; }
-*/
 
 static inline void
 rip_reset_tx_session(struct rip_proto *p, struct rip_iface *ifa)
diff --git a/sysdep/linux/netlink.c b/sysdep/linux/netlink.c
index 5015eba3..b3d0a9ab 100644
--- a/sysdep/linux/netlink.c
+++ b/sysdep/linux/netlink.c
@@ -477,12 +477,12 @@ nl_parse_multipath(struct krt_proto *p, struct rtattr *ra)
       nl_parse_attrs(RTNH_DATA(nh), mpnh_attr_want4, a, sizeof(a));
       if (a[RTA_GATEWAY])
 	{
-	  memcpy(&rv->gw, RTA_DATA(a[RTA_GATEWAY]), sizeof(ip_addr));
-	  ipa_ntoh(rv->gw);
+	  rv->gw = rta_get_ipa(a[RTA_GATEWAY]);
 
-	  neighbor *ng = neigh_find2(&p->p, &rv->gw, rv->iface,
-				     (nh->rtnh_flags & RTNH_F_ONLINK) ? NEF_ONLINK : 0);
-	  if (!ng || (ng->scope == SCOPE_HOST))
+	  neighbor *nbr;
+	  nbr = neigh_find2(&p->p, &rv->gw, rv->iface,
+			    (nh->rtnh_flags & RTNH_F_ONLINK) ? NEF_ONLINK : 0);
+	  if (!nbr || (nbr->scope == SCOPE_HOST))
 	    return NULL;
 	}
       else
@@ -1165,18 +1165,17 @@ nl_parse_route(struct nlmsghdr *h, int scan)
 
       if (a[RTA_GATEWAY])
 	{
-	  neighbor *ng;
 	  ra.dest = RTD_ROUTER;
-	  memcpy(&ra.gw, RTA_DATA(a[RTA_GATEWAY]), sizeof(ra.gw));
-	  ipa_ntoh(ra.gw);
+	  ra.gw = rta_get_ipa(a[RTA_GATEWAY]);
 
 	  /* Silently skip strange 6to4 routes */
 	  if ((i->rtm_family == AF_INET6) && ipa_in_net(ra.gw, IPA_NONE, 96))
 	    return;
 
-	  ng = neigh_find2(&p->p, &ra.gw, ra.iface,
-			   (i->rtm_flags & RTNH_F_ONLINK) ? NEF_ONLINK : 0);
-	  if (!ng || (ng->scope == SCOPE_HOST))
+	  neighbor *nbr;
+	  nbr = neigh_find2(&p->p, &ra.gw, ra.iface,
+			    (i->rtm_flags & RTNH_F_ONLINK) ? NEF_ONLINK : 0);
+	  if (!nbr || (nbr->scope == SCOPE_HOST))
 	    {
 	      log(L_ERR "KRT: Received route %N with strange next-hop %I", net->n.addr, ra.gw);
 	      return;
diff --git a/tools/Makefile.in b/tools/Makefile.in
index 01bb7a7c..5de323ab 100644
--- a/tools/Makefile.in
+++ b/tools/Makefile.in
@@ -72,15 +72,15 @@ tags:
 
 install: all
 	$(INSTALL) -d $(DESTDIR)/$(sbindir) $(DESTDIR)/$(sysconfdir) $(DESTDIR)/@runtimedir@
-	$(INSTALL_PROGRAM) $(exedir)/bird $(DESTDIR)/$(sbindir)/bird@SUFFIX@
-	$(INSTALL_PROGRAM) $(exedir)/birdcl $(DESTDIR)/$(sbindir)/birdcl@SUFFIX@
+	$(INSTALL_PROGRAM) $(exedir)/bird $(DESTDIR)/$(sbindir)/bird
+	$(INSTALL_PROGRAM) $(exedir)/birdcl $(DESTDIR)/$(sbindir)/birdcl
 	if test -n "@CLIENT@" ; then								\
-		$(INSTALL_PROGRAM) $(exedir)/birdc $(DESTDIR)/$(sbindir)/birdc@SUFFIX@ ;	\
+		$(INSTALL_PROGRAM) $(exedir)/birdc $(DESTDIR)/$(sbindir)/birdc ;		\
 	fi
 	if ! test -f $(DESTDIR)/@CONFIG_FILE@ ; then						\
 		$(INSTALL_DATA) $(srcdir)/doc/bird.conf.example $(DESTDIR)/@CONFIG_FILE@ ;	\
 	else											\
-		echo "Not overwriting old bird@SUFFIX@.conf" ;					\
+		echo "Not overwriting old bird.conf" ;						\
 	fi
 
 install-docs: