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SubjectRe: failed to configure iptables with 2.6.16 kernel
On Tue, Mar 28, 2006 at 04:00:33AM +0000, Hubert Tonneau wrote:
> When upgrading from 2.6.15 to 2.6.16 I noticed iptables not working anymore.
> I traced the problem down to a new 'CONFIG_NETFILTER_XTABLES' compile option
> that must be set, but I still get some rules rejected as soon as
> '--destination-port' option is used.
> As an example, the following command:
> iptables -A eth0in -p udp --destination-port 111 -j DROP

this sounds like you're missing support for the tcp/udp match.
This functionality is implemented in xt_tcpudp.{c,ko}, which is compiled
as soon as x_tables is compiled.

What does cat /proc/netip_tables_matches show before and after executing
your iptables command, and before/after manually executing modprobe

Also, what is your iptables program version?

Please follow-up-to, but keep me in Cc

- Harald Welte <>
"Fragmentation is like classful addressing -- an interesting early
architectural error that shows how much experimentation was going
on while IP was being designed." -- Paul Vixie
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