> > I compiled the latest 2.6.19 kernel and tested it with
> > two 3COM 3c905c fast ethernet interfaces which work fine
> > with vlan 802.1q tagging, but when I have added the eth0
> > and eth1 to br0 the bridge doesn't forward tagged
> > packets larger than 1472 bytes. I remember that with
> > older kernels (<2.6.15) large tagged packets was
> > forwarded. What is the problem? Any chance to have a
> > patch? Thanks in advance for your answers.
> > Best Regards
> > Fulvio Ricciardi
> >
>
>
> This code might be dropping it, but don't see why because
> it is already checking for VLAN
>
> net/bridge/br_forward.c
>
> static inline unsigned packet_length(const struct sk_buff
> *skb) {
> return skb->len - (skb->protocol == htons(ETH_P_8021Q)
> ? VLAN_HLEN : 0); }
>
> int br_dev_queue_push_xmit(struct sk_buff *skb)
> {
> /* drop mtu oversized packets except gso */
> if (packet_length(skb) > skb->dev->mtu &&
> !skb_is_gso(skb))
> kfree_skb(skb);
>
> --
> Stephen Hemminger <shemminger at osdl.org>
I don't think the function br_dev_queue_push_xmit(struct
sk_buff *skb) drops the large tagged packets because the
size limit I found with the tests is 1472 bytes and not 1496
(MTU-4).
--------------------------------------------------------------------
Fulvio Ricciardi
web: http://www.zeroshell.net/eng/
skype: zeroshellnet
Phone: +3908321835630
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