this patch for snat ARP proxy. man patch will be later

--- ebt_snat.c  7 Jul 2003 11:43:51 -0000       1.1
+++ ebt_snat.c  7 Jul 2003 12:07:49 -0000
@@ -11,15 +11,22 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
 #include <linux/module.h>
+#include <linux/if_arp.h>

 static int ebt_target_snat(struct sk_buff **pskb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
        struct ebt_nat_info *info = (struct ebt_nat_info *) data;
-
        memcpy(((**pskb).mac.ethernet)->h_source, info->mac,
           ETH_ALEN * sizeof(unsigned char));
+       if (ETH_P_ARP == ntohs(((**pskb).mac.ethernet)->h_proto))
+               memcpy((((**pskb).nh.raw) + sizeof(struct arphdr)),
+                   info->mac, ETH_ALEN * sizeof(unsigned char));
        return info->target;
 }




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