diff -Naur iproute2-2.6.29-1/ip/ipxfrm.c iproute2-2.6.29-1.tpg/ip/ipxfrm.c
--- iproute2-2.6.29-1/ip/ipxfrm.c	2009-03-24 22:40:54.000000000 +0000
+++ iproute2-2.6.29-1.tpg/ip/ipxfrm.c	2009-06-20 16:28:38.000000000 +0000
@@ -1156,6 +1156,7 @@
 		case IPPROTO_UDP:
 		case IPPROTO_SCTP:
 		case IPPROTO_DCCP:
+		case IPPROTO_IP:	/* to allow shared SA for different protocols */
 			break;
 		default:
 			fprintf(stderr, "\"sport\" and \"dport\" are invalid with proto=%s\n", strxf_proto(sel->proto));