From bc818608f1d95dcc775a4fb1861f43e734d79f09 Mon Sep 17 00:00:00 2001
From: Lou Berger <lberger@labn.net>
Date: Tue, 31 Jan 2017 16:42:47 -0500
Subject: [PATCH] bgp rfapi: fix resolution / lookup failure when using MPLS TT

Signed-off-by: Lou Berger <lberger@labn.net>
---
 bgpd/rfapi/rfapi_import.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/bgpd/rfapi/rfapi_import.c b/bgpd/rfapi/rfapi_import.c
index 4d35af2641..adb54fd0e1 100644
--- a/bgpd/rfapi/rfapi_import.c
+++ b/bgpd/rfapi/rfapi_import.c
@@ -421,9 +421,16 @@ rfapiGetVncTunnelUnAddr (struct attr *attr, struct prefix *p)
   bgp_encap_types               tun_type;
   
   rfapiGetTunnelType (attr, &tun_type);
-  if (p && tun_type == BGP_ENCAP_TYPE_MPLS) 
+  if (tun_type == BGP_ENCAP_TYPE_MPLS) 
     {
-      return ENOENT;            /* no UN for MPLS */
+      if (!p)
+        return 0;
+      /* MPLS carries UN address in next hop */
+      rfapiNexthop2Prefix (attr, p);
+      if (p->family != 0)
+        return 0;
+
+      return ENOENT;
     }
   if (attr && attr->extra)
     {