Re: Dynamic source MAC-NAT?

"[email protected]" <[email protected]>
Newsgroups gmane.linux.network.bridge.ebtables.devel
Message-ID <[email protected]>
Bart De Schuymer wrote:
> The problem with dynamic macnat is that the kernel sk_buff structure
> will have to be altered, which is something the network maintainers
> don't like. Apart from that there should be no big problems implementing
> it.

Why is the modification neccessary? As I understand it you only need to
keep a hash of tracked "connections" and mangle the *skb->data when the
packet hits. Am I missing something?

> I currently lack the time for any serious development, though.

I have briefly looked at DHCP (RFC2131) so far, as I was worried that
MAC NAT would break it, and it seems viable, there are two fields in the
packet that make it possible to identify the "connection".

Feyd



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