Index: sys/net/if_gre.c
===================================================================
--- sys/net/if_gre.c
+++ sys/net/if_gre.c
@@ -682,7 +682,7 @@
 	struct grehdr *gh;
 	struct ifnet *ifp;
 	struct mbuf *m;
-	uint32_t *opts, key;
+	uint32_t *opts;
 	uint16_t flags;
 	int hlen, isr, af;
 
@@ -715,17 +715,11 @@
 		opts++;
 	}
 	if (flags & GRE_FLAGS_KP) {
-		key = ntohl(*opts);
 		hlen += sizeof(uint32_t);
 		opts++;
-	} else
-		key = 0;
-	/*
-	if (sc->gre_key != 0 && (key != sc->gre_key || key != 0))
-		goto drop;
-	*/
+	}
+	
 	if (flags & GRE_FLAGS_SP) {
-		/* seq = ntohl(*opts); */
 		hlen += sizeof(uint32_t);
 	}
 	switch (ntohs(gh->gre_proto)) {