Re: [uClinux-dev] uClinux and IP Firewall

From: Greg Ungerer (gerg@moreton.com.au)
Date: Fri Jul 21 2000 - 03:03:35 EDT


Hi haw Innes,

Shaw Innes wrote:
>   I'm a recent convertee to the uClinux following, and have been tinkering
> with a couple of NETtel devices as my platform (coldfire chipset).  I am
> however experiencing some difficulties when trying to apply firewall rules
> using the ipfwadm command as supplied in the uclinux source.
> 
>   If I attempt to insert a forwarding rule such as the following:
> ipfwadm -F -a reject -P tcp -S 0/0 -D 0/0 23
> (to disallow telnet through the firewall)
> 
>   The addition is 'apparently' successful.  However if I then do a list on
> the rules.  I get a rule saying deny from any to any on all protocols, and
> ports n/a.
> 
>   Has anyone successfully used ipfwadm and IP firewalling on a NETtel, or
> other coldfire chip?

I have heard of this problem once before. I am pretty sure it is
just a problem with the listing of the rules, the actual settings
are applied and work.

Seeya
Greg


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Greg Ungerer                                  EMAIL: gerg@moreton.com.au
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