Well I'd suggest putting it into pptp mode,
then you can get the internet ip address into the linux box and firewall with
standard tools.
I run freebsd this way but would assume the same stands for linux, though not
sure of the pptp client to run.
For configuration I used telnet onto the m1122 to get the settings right when
I had older firmware.

On Tue, 15 Jul 2003 07:12, Chris Smith wrote:
> Hi Guys,
>
> Long time reader, first time poster etc...
>
> I'm the owner of a M1122 ADSL Modem/Gateway/Router box. Which is connected
> to my Linux server which provides internet/email for the household.
> Recently, I've lost faith in the security of the ADSL router and its
> firewalling capabilities, and decided I would let Linux's firewall take
> care of the security side of things.
>
> So I've been poking around in the HTTP configuration screens for this
> modem, and have tried a few things, but I just can't get the router to
> forward all connections it recieves to my linux box. I rang Xtra's
> helpdesk, but as soon as I mentioned Linux, they didn't want to know, even
> though it was help with the modem I needed.
>
> Also, I looked at the firmware version and saw it was .V04 and I remember
> reading somewhere that the latest was .V09 Where can I obtain this upgrade,
> and do I really need to do it?
>
> Thanks in advance,
> Chris.

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