diff -ur --unidirectional-new-file skipsrc-1.0.orig/skip/common/skip_keystore.c skipsrc-1.0/skip/common/skip_keystore.c
--- skipsrc-1.0.orig/skip/common/skip_keystore.c	Fri Oct 25 13:12:41 1996
+++ skipsrc-1.0/skip/common/skip_keystore.c	Mon Dec 15 17:41:20 1997
@@ -308,7 +308,7 @@
 		/*
 	 	 * SKIP tunneling mode
 	 	 */
-		params->payload_type = IPPROTO_ENCAP;
+		params->payload_type = IPPROTO_IPIP;
 	}
 	/*
 	 * Return offset of data to decrypt