It looks like the bridge netfilter code does not correctly update the hardware checksum after popping off the VLAN header.
This is by inspection, I have *not* tested this. To test you would need to set up a filtering bridge with vlans and a device the does hardware receive checksum (skge, or sungem) Signed-off-by: Stephen Hemminger <[EMAIL PROTECTED]> --- net-2.6.16.orig/net/bridge/br_netfilter.c +++ net-2.6.16/net/bridge/br_netfilter.c @@ -394,8 +394,9 @@ inhdr_error: * target in particular. Save the original destination IP * address to be able to detect DNAT afterwards. */ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb, - const struct net_device *in, const struct net_device *out, - int (*okfn)(struct sk_buff *)) + const struct net_device *in, + const struct net_device *out, + int (*okfn)(struct sk_buff *)) { struct iphdr *iph; __u32 len; @@ -412,8 +413,10 @@ static unsigned int br_nf_pre_routing(un goto out; if (skb->protocol == __constant_htons(ETH_P_8021Q)) { + u8 *vhdr = skb->data; skb_pull(skb, VLAN_HLEN); - (skb)->nh.raw += VLAN_HLEN; + skb_postpull_rcsum(skb, vhdr, VLAN_HLEN); + skb->nh.raw += VLAN_HLEN; } return br_nf_pre_routing_ipv6(hook, skb, in, out, okfn); } @@ -429,8 +432,10 @@ static unsigned int br_nf_pre_routing(un goto out; if (skb->protocol == __constant_htons(ETH_P_8021Q)) { + u8 *vhdr = skb->data; skb_pull(skb, VLAN_HLEN); - (skb)->nh.raw += VLAN_HLEN; + skb_postpull_rcsum(skb, vhdr, VLAN_HLEN); + skb->nh.raw += VLAN_HLEN; } if (!pskb_may_pull(skb, sizeof(struct iphdr))) - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html