diff --git a/dp-core/vr_proto_ip.c b/dp-core/vr_proto_ip.c
index 543126761..29a875b42 100644
--- a/dp-core/vr_proto_ip.c
+++ b/dp-core/vr_proto_ip.c
@@ -857,9 +857,13 @@ vr_inet_proto_flow(struct vrouter *router, unsigned short vrf,
             sport = 0;
             dport = icmph->icmp_type;
         }
-    } else {
+    } else if ((ip->ip_proto == VR_IP_PROTO_TCP) ||
+            (ip->ip_proto == VR_IP_PROTO_UDP)) {
         sport = *t_hdr;
         dport = *(t_hdr + 1);
+    } else {
+        sport = 0;
+        dport = 0;
     }
 
     nh_id = vr_inet_flow_nexthop(pkt, vlan);