>btw, whatever the implementation is, I'd prefer it to be something
>like a single function call (in ip_output.c?) that can be used by
>other code (ie. inlining would be annoying if the symbol disappears
>at link time) - e.g. packets generated by IPFilter should get their
>IPid from this "generator" as well.

	it is as easy as
		ip_id = htons(ip_randomid());

itojun