Re: Help getting iptables REDIRECT to work

* [Thu, Oct 21, 2010 at 01:33:13AM +0100] Chris Haynes:
>Although no strictly a 'firewall' question, I expect the experts on
>iptables are on this list.

Not an expert, anyway...

>I have Debian lenny.
>$ uname -r
>2.6.32.21-m64-mb1

It isn't from a Debian package, is it?

>$ sudo iptables -L

This should be:
$ sudo iptables -t nat -L

>Can anyone tell me how to get REDIRECT working, or suggest further
>diagnostics?

Try doing

$ grep REDIRECT /boot/config-$( uname -r )

for checking kernel support, and

$ dpkg -L iptables | grep REDIRECT

for the userspace counterpart.

For reference, here the results on my (sid) box:

gpiero@caimano:~$ grep REDIRECT /boot/config-$( uname -r )
CONFIG_IP_NF_TARGET_REDIRECT=m <--
CONFIG_BRIDGE_EBT_REDIRECT=m
gpiero@caimano:~$ dpkg -L iptables | grep REDIRECT
/lib/xtables/libipt_REDIRECT.so

Ciao,
Gian Piero.

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