diff options
Diffstat (limited to 'proto/bgp/packets.c')
| -rw-r--r-- | proto/bgp/packets.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/proto/bgp/packets.c b/proto/bgp/packets.c index 074d6cf7..f9c1da41 100644 --- a/proto/bgp/packets.c +++ b/proto/bgp/packets.c @@ -1112,6 +1112,10 @@ bgp_use_next_hop(struct bgp_export_state *s, eattr *a) if ((ipa_is_ip4(*nh) != bgp_channel_is_ipv4(c)) && !c->ext_next_hop) return 0; + /* Do not pass NEXT_HOP between different VRFs */ + if (p->p.vrf && s->src && s->src->p.vrf && (p->p.vrf != s->src->p.vrf)) + return 0; + /* Keep it when exported to internal peers */ if (p->is_interior && ipa_nonzero(*nh)) return 1; @@ -1148,6 +1152,10 @@ bgp_use_gateway(struct bgp_export_state *s) if ((ipa_is_ip4(nhad->nh.gw) != bgp_channel_is_ipv4(c)) && !c->ext_next_hop) return NULL; + /* Do not use gateway from different VRF */ + if (p->p.vrf && nhad->nh.iface && (p->p.vrf != nhad->nh.iface->master)) + return 0; + /* Use it when exported to internal peers */ if (p->is_interior) return &nhad->nh; @@ -1177,6 +1185,8 @@ bgp_update_next_hop_ip(struct bgp_export_state *s, eattr *a, ea_list **to) uint lnum = nhloc->labels ? nhloc->labels : 1; bgp_set_attr_data(to, BA_MPLS_LABEL_STACK, 0, labels, lnum * 4); } + else + bgp_unset_attr(to, BA_MPLS_LABEL_STACK); } else { @@ -1190,6 +1200,8 @@ bgp_update_next_hop_ip(struct bgp_export_state *s, eattr *a, ea_list **to) u32 implicit_null = BGP_MPLS_NULL; bgp_set_attr_data(to, BA_MPLS_LABEL_STACK, 0, &implicit_null, 4); } + else + bgp_unset_attr(to, BA_MPLS_LABEL_STACK); } } |