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-rw-r--r--proto/babel/babel.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/proto/babel/babel.c b/proto/babel/babel.c
index 44c6adb8..20953044 100644
--- a/proto/babel/babel.c
+++ b/proto/babel/babel.c
@@ -952,6 +952,10 @@ babel_send_update_(struct babel_iface *ifa, btime changed, struct fib *rtable)
msg.update.next_hop = ((e->n.addr->type == NET_IP4) ?
ifa->next_hop_ip4 : ifa->next_hop_ip6);
+ /* Do not send route if next hop is unknown, e.g. no configured IPv4 address */
+ if (ipa_zero(msg.update.next_hop))
+ continue;
+
babel_enqueue(&msg, ifa);
/* Update feasibility distance for redistributed routes */
@@ -1580,7 +1584,7 @@ babel_add_iface(struct babel_proto *p, struct iface *new, struct babel_iface_con
ifa->next_hop_ip6 = ipa_nonzero(ic->next_hop_ip6) ? ic->next_hop_ip6 : ifa->addr;
if (ipa_zero(ifa->next_hop_ip4) && p->ip4_channel)
- log(L_WARN "%s: Cannot find IPv4 next hop addr on %s", p->p.name, new->name);
+ log(L_WARN "%s: Missing IPv4 next hop address for %s", p->p.name, new->name);
init_list(&ifa->neigh_list);
ifa->hello_seqno = 1;
@@ -1682,7 +1686,7 @@ babel_reconfigure_iface(struct babel_proto *p, struct babel_iface *ifa, struct b
ifa->next_hop_ip6 = ipa_nonzero(new->next_hop_ip6) ? new->next_hop_ip6 : ifa->addr;
if (ipa_zero(ifa->next_hop_ip4) && p->ip4_channel)
- log(L_WARN "%s: Cannot find IPv4 next hop addr on %s", p->p.name, ifa->ifname);
+ log(L_WARN "%s: Missing IPv4 next hop address for %s", p->p.name, ifa->ifname);
if (ifa->next_hello > (current_time() + new->hello_interval))
ifa->next_hello = current_time() + (random() % new->hello_interval);