LISP: Fix fwd adding, VPP-607

Change-Id: Ie48209ba6d9aab0c5cfbd7b3cce4114cf88f952c
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>

Author: Filip Tehlar

vnet/vnet/lisp-cp/control.c

@@ -512,7 +512,12 @@ dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
   pool_get (lcm->fwd_entry_pool, fe);
   fe->locator_pairs = a->locator_pairs;
   gid_address_copy (&fe->reid, &a->rmt_eid);
-  gid_address_copy (&fe->leid, &a->lcl_eid);
+
+  if (is_src_dst)
+    gid_address_copy (&fe->leid, &a->lcl_eid);
+  else
+    gid_address_copy (&fe->leid, &src_map->eid);
+
   fe->is_src_dst = is_src_dst;
   hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
 	    fe - lcm->fwd_entry_pool);