Apply by doing:
cd /usr/src
patch -p0 < 012_route6.patch
Then build and install a new kernel.
Index: sys/netinet6/route6.c
===================================================================
RCS file: /cvs/src/sys/netinet6/route6.c,v
retrieving revision 1.10
diff -u -r1.10 route6.c
--- sys/netinet6/route6.c 11 Jun 2003 02:54:02 -0000 1.10
+++ sys/netinet6/route6.c 22 Apr 2007 09:47:36 -0000
@@ -1,4 +1,4 @@
-/* $OpenBSD: route6.c,v 1.10 2003/06/11 02:54:02 itojun Exp $ */
+/* $OpenBSD: route6.c,v 1.15 2007/04/21 16:47:42 itojun Exp $ */
/* $KAME: route6.c,v 1.22 2000/12/03 00:54:00 itojun Exp $ */
/*
@@ -44,8 +44,10 @@
#include <netinet/icmp6.h>
+#if 0
static int ip6_rthdr0(struct mbuf *, struct ip6_hdr *,
struct ip6_rthdr0 *);
+#endif
int
route6_input(mp, offp, proto)
@@ -65,6 +67,7 @@
}
switch (rh->ip6r_type) {
+#if 0
case IPV6_RTHDR_TYPE_0:
rhlen = (rh->ip6r_len + 1) << 3;
/*
@@ -83,6 +86,7 @@
if (ip6_rthdr0(m, ip6, (struct ip6_rthdr0 *)rh))
return (IPPROTO_DONE);
break;
+#endif
default:
/* unknown routing type */
if (rh->ip6r_segleft == 0) {
@@ -99,6 +103,7 @@
return (rh->ip6r_nxt);
}
+#if 0
/*
* Type0 routing header processing
*
@@ -190,3 +195,4 @@
m_freem(m);
return (-1);
}
+#endif