diff -up ipsec-tools-0.7.2/src/racoon/isakmp_inf.c.natt-linux ipsec-tools-0.7.2/src/racoon/isakmp_inf.c
--- ipsec-tools-0.7.2/src/racoon/isakmp_inf.c.natt-linux	2009-04-20 15:35:36.000000000 +0200
+++ ipsec-tools-0.7.2/src/racoon/isakmp_inf.c	2009-04-23 14:46:55.000000000 +0200
@@ -1144,7 +1144,6 @@ purge_ipsec_spi(dst0, proto, spi, n)
 	caddr_t mhp[SADB_EXT_MAX + 1];
 #ifdef ENABLE_NATT
 	struct sadb_x_nat_t_type *natt_type;
-	struct sadb_x_nat_t_port *natt_port;
 #endif
 
 	plog(LLV_DEBUG2, LOCATION, NULL,
@@ -1200,17 +1199,8 @@ purge_ipsec_spi(dst0, proto, spi, n)
 		}
 #ifdef ENABLE_NATT
 		natt_type = (void *)mhp[SADB_X_EXT_NAT_T_TYPE];
-		if (natt_type && natt_type->sadb_x_nat_t_type_type) {
-			/* NAT-T is enabled for this SADB entry; copy
-			 * the ports from NAT-T extensions */
-			natt_port = (void *)mhp[SADB_X_EXT_NAT_T_SPORT];
-			if (extract_port(src) == 0 && natt_port != NULL)
-				set_port(src, ntohs(natt_port->sadb_x_nat_t_port_port));
-
-			natt_port = (void *)mhp[SADB_X_EXT_NAT_T_DPORT];
-			if (extract_port(dst) == 0 && natt_port != NULL)
-				set_port(dst, ntohs(natt_port->sadb_x_nat_t_port_port));
-		}else{
+		if (natt_type == NULL ||
+			! natt_type->sadb_x_nat_t_type_type) {
 			/* Force default UDP ports, so CMPSADDR will match SAs with NO encapsulation
 			 */
 			set_port(src, PORT_ISAKMP);
diff -up ipsec-tools-0.7.2/src/racoon/pfkey.c.natt-linux ipsec-tools-0.7.2/src/racoon/pfkey.c
--- ipsec-tools-0.7.2/src/racoon/pfkey.c.natt-linux	2009-04-23 14:40:08.000000000 +0200
+++ ipsec-tools-0.7.2/src/racoon/pfkey.c	2009-04-23 14:40:08.000000000 +0200
@@ -290,6 +290,13 @@ pfkey_dump_sadb(satype)
 	struct sadb_msg *msg = NULL;
 	size_t bl, ml;
 	int len;
+#if defined(__linux__) && defined(ENABLE_NATT)
+	caddr_t mhp[SADB_EXT_MAX + 1];
+	struct sadb_sa *sa;
+	struct sockaddr *src, *dst;
+	struct sadb_x_nat_t_type *natt_type;
+	struct sadb_x_nat_t_port *natt_port;
+#endif
 
 	if ((s = privsep_pfkey_open()) < 0) {
 		plog(LLV_ERROR, LOCATION, NULL,
@@ -325,6 +332,45 @@ pfkey_dump_sadb(satype)
 		    continue;
 		}
 		
+#if defined(__linux__) && defined(ENABLE_NATT)
+		/*
+		 * NetBSD returns the NAT-T ports in the src and dst sockaddrs
+		 * in addition to the SADB_X_EXT_NAT_T_*PORT structs.
+		 *
+		 * Linux only returns them in the SADB_X_EXT_NAT_T_*PORT
+		 * structs. The racoon codebase is making the assumption that
+		 * the NAT-T ports are reflected by the ports in the src and
+		 * dst sockaddrs. We stick that information into those structs
+		 * here to meet the assumptions elsewhere.
+		 */
+		if (pfkey_align(msg, mhp) || pfkey_check(mhp)) {
+		    plog(LLV_ERROR, LOCATION, NULL,
+			"pfkey_check (%s)\n", ipsec_strerror());
+		    goto no_fixup;
+		}
+
+		sa = (struct sadb_sa *)(mhp[SADB_EXT_SA]);
+		if (!sa || !mhp[SADB_EXT_ADDRESS_SRC] || !mhp[SADB_EXT_ADDRESS_DST]) {
+		    goto no_fixup;
+		}
+
+		src = PFKEY_ADDR_SADDR(mhp[SADB_EXT_ADDRESS_SRC]);
+		dst = PFKEY_ADDR_SADDR(mhp[SADB_EXT_ADDRESS_DST]);
+
+		natt_type = (struct sadb_x_nat_t_type *)(mhp[SADB_X_EXT_NAT_T_TYPE]);
+
+		if (natt_type && natt_type->sadb_x_nat_t_type_type) {
+		    /* set the src and dst ports */
+		    natt_port = (struct sadb_x_nat_t_port *)(mhp[SADB_X_EXT_NAT_T_SPORT]);
+		    if (natt_port != NULL && extract_port(src) == 0)
+			set_port(src, ntohs(natt_port->sadb_x_nat_t_port_port));
+
+		    natt_port = (void *)mhp[SADB_X_EXT_NAT_T_DPORT];
+		    if (natt_port != NULL && extract_port(dst) == 0)
+			set_port(dst, ntohs(natt_port->sadb_x_nat_t_port_port));
+		}
+no_fixup:
+#endif /* __linux__ && ENABLE_NATT */
 
 		ml = msg->sadb_msg_len << 3;
 		bl = buf ? buf->l : 0;