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bgpd: Stop overriding nexthop when BGP unnumberred

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When we use vrf-to-vrf export, the nexthop has already not been
overridden when the peer is BGP unnumberred. However, when we use normal
export, the nexthop will be oberridden. This behavior will make the VPN
routes invalid in VPN RIB.

This PR stops overriding nexthop even if we use normal export.

Signed-off-by: Ryoga Saito <ryoga.saito@linecorp.com>
This commit is contained in:
Ryoga Saito 2022-12-04 23:51:45 +09:00
parent c7e804c900
commit f784007d67
1 changed files with 2 additions and 1 deletions
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3
bgpd/bgp_mplsvpn.c
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@ -1505,7 +1505,8 @@ void vpn_leak_from_vrf_update(struct bgp *to_bgp, /* to */
} else { } else {
if (!CHECK_FLAG(from_bgp->af_flags[afi][SAFI_UNICAST], if (!CHECK_FLAG(from_bgp->af_flags[afi][SAFI_UNICAST],
BGP_CONFIG_VRF_TO_VRF_EXPORT)) { BGP_CONFIG_VRF_TO_VRF_EXPORT)) {
if (afi == AFI_IP) { if (afi == AFI_IP &&
!BGP_ATTR_NEXTHOP_AFI_IP6(path_vrf->attr)) {
/* /*
* For ipv4, copy to multiprotocol * For ipv4, copy to multiprotocol
* nexthop field * nexthop field