LISP: improve DP speed

Change-Id: I5bd0721b70dfc240fa9225df3704774f6b0ede81
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
diff --git a/src/vnet/lisp-cp/control.c b/src/vnet/lisp-cp/control.c
index 47badeb..3fda6ac 100644
--- a/src/vnet/lisp-cp/control.c
+++ b/src/vnet/lisp-cp/control.c
@@ -489,6 +489,7 @@
     gid_address_copy (&a->rmt_eid, rmt_eid);
 
   a->vni = gid_address_vni (&a->rmt_eid);
+  a->is_src_dst = is_src_dst;
 
   /* get vrf or bd_index associated to vni */
   type = gid_address_type (&a->rmt_eid);