Commit 9eace843 authored Oct 10, 2019 by Ondrej Zajicek (work)

Nest: Handle PtP links in recursive route update

Underlying (IGP) route may lead to PtP link, in this case it does not
need gateway. Which is different than direct route without gateway.

When recursive (BGP) route uses PtP route, it should not use recursive
next hop as immediate next hop, while for direct routes it should.

parent cb2b6e04

nest/rt-table.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2137,6 +2137,8 @@ no_nexthop:
		nhp->gw = nh->gw; /* Router nexthop */
		nhp->flags \|= (nh->flags & RNF_ONLINK);
		}
		else if (!(nh->iface->flags & IF_MULTIACCESS) \|\| (nh->iface->flags & IF_LOOPBACK))
		nhp->gw = IPA_NONE; /* PtP link - no need for nexthop */
		else if (ipa_nonzero(he->link))
		nhp->gw = he->link; /* Device nexthop with link-local address known */
		else