Paul P Komkoff Jr <[EMAIL PROTECTED]> wrote: > > Hello! > > I have a userspace application, which talks WCCP2 with cisco routers. > It sends and receives UDP packets on port 2048. After I've updated my > server to 2.6.16, it stopped working. > > Examining logs and packet dumps of previous (2.6.15 kernel) vs. > current, I found, that cisco will not understand packets generated by > 2.6.16. The only difference in that packets was IP id field, which was > increasing (1, 2, ...) with old kernel, and always 0 with 2.6.16. > > Looking thru the changelog, I've found a suspect. It was this commit: > http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1a55d57b107c3e06935763905dc0fb235214569d > > Reverting this patch fixes my problems - the router understands > packets again. > > I took a look through the code and ip_select_ident codepath but still > don't understand why it setting id to 0.
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