Have a look at your routing table then and default gateways for the
devices in question.  

It is probably one of these.

david

On Fri, 6 Sep 2002, Linux wrote:

> IP forwarding is on as the .1.x network can talk to the internet via eth1 on
> 10.0.0.x
> 
> Any other clues?
> 
> Many thanks
> 
> Mike
> 
> -----Original Message-----
> From: dbrett [mailto:[EMAIL PROTECTED]]
> Sent: Friday, 6 September 2002 09:21
> To: '[EMAIL PROTECTED]'
> Subject: RE: Routing / Bridging problem
> 
> 
> It sounds like IP forwarding is not on.
> 
> Just a guess.
> 
> david
> 
> On Fri, 6 Sep 2002, Linux wrote:
> 
> > Hi Cameron
> > 
> > 192.168.1.x (eth0) is the local LAN which has internet access via
> 10.0.0.220
> > and this works always has worked
> > 
> > Although there are other networks on x.x.2.x and x.x.3.x they are handled
> by
> > other systems
> > 
> > I have just implemented a new network at x.x.4.x. This is via a Radio wave
> > LAN bridge. This is being implemented via our Linux RH7.2 box using
> > IPTables. The .4.x network has been implemented as an aliased address on
> > eth0 with the .1.x network
> > 
> > The interface card is at 1.220 for the local LAN and 4.220 for the radio
> > LAN.
> > 
> > >From the radio network I can Ping 4.220 and get a reply. From the .1.x
> > network I can ping the .4.220 and the .4.253 and 4.254 radio link bridge
> > devices.
> > 
> > >From a PC at the other end of the radio bridge I can ping both  radio
> > devices and the Linux interface @ 4.220.
> > >From a PC at the other end of the radio bridge I cannot ping or contact
> > either the 1.220 interface nor any PC on the .1.x network
> > 
> > Redhat 7.2 with IPTables eth0 has .1.220 and an aliases address .4.220
> > 
> >     Radio                   Radio                           Linux Box
> >     End1                    End2                            xxxxxxx
> >     xxxx                    xxxx                    4.220   x       x
> > --- x  x -----------        x  x ------------------ x       x-----eth1
> > x.x.x.x = Internet
> >     x  x                    x  x                    eth0    x       x
> >     xxxx                    xxxx                    -       x       x
> >     192.168.4.254   192.168.4.253   -       xxxxxxx
> >                                                     -
> >                                             eth0 also = 1.220 and other
> > PCs on .1.x
> > 
> > 
> > 
> > -- 
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> > 
> 
> 
> 
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