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bgpd: fix update-source for ipv6

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There's no IPv6 LL address on loopback/vrf interfaces. So if the user
configures update-source, the session is never going to be established.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
This commit is contained in:
Igor Ryzhov 2021-08-26 13:07:55 +03:00
parent 3e324ff419
commit 2ebb354c41
1 changed files with 6 additions and 0 deletions
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6
bgpd/bgp_zebra.c
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@ -838,6 +838,12 @@ bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote,
if (direct) if (direct)
v6_ll_avail = if_get_ipv6_local( v6_ll_avail = if_get_ipv6_local(
ifp, &nexthop->v6_local); ifp, &nexthop->v6_local);
/*
* It's fine to not have a v6 LL when using
* update-source loopback/vrf
*/
if (!v6_ll_avail && if_is_loopback_or_vrf(ifp))
v6_ll_avail = true;
} else } else
/* Link-local address. */ /* Link-local address. */
{ {