diff -urNX ../dontdiff ../linux-2.4.32-wt2-brnf-bug2/include/linux/netfilter_bridge.h ./include/linux/netfilter_bridge.h
--- ../linux-2.4.32-wt2-brnf-bug2/include/linux/netfilter_bridge.h	2005-12-06 17:46:53.000000000 +0100
+++ ./include/linux/netfilter_bridge.h	2005-12-06 17:47:46.000000000 +0100
@@ -45,7 +45,7 @@
 	NF_BR_PRI_LAST = INT_MAX,
 };
 
-#ifdef CONFIG_NETFILTER
+#if defined (CONFIG_NETFILTER) && (defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE))
 static inline
 struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
 {
diff -urNX ../dontdiff ../linux-2.4.32-wt2-brnf-bug2/net/ipv4/ip_output.c ./net/ipv4/ip_output.c
--- ../linux-2.4.32-wt2-brnf-bug2/net/ipv4/ip_output.c	2005-12-06 17:46:53.000000000 +0100
+++ ./net/ipv4/ip_output.c	2005-12-06 17:48:00.000000000 +0100
@@ -788,7 +788,7 @@
 	hlen = iph->ihl * 4;
 	left = skb->len - hlen;		/* Space per frame */
 	mtu = rt->u.dst.pmtu - hlen;	/* Size of data space */
-#ifdef CONFIG_NETFILTER
+#if defined (CONFIG_NETFILTER) && (defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE))
        ll_rs = nf_bridge_pad(skb);
        mtu -= ll_rs;
 #endif