Home Network Issues

[andrew-perl08@mail.black1.org.uk]

On Sun, Sep 09, 2012 at 01:34:07PM +0100, Dave Cross wrote:
 Except, after I while I noticed a problem. All of the devices on the
> internal network could still connect to the internet, but they could
> no longer connect to each other. In fact, they could no longer even
> see each other.

I would check the netmask
$ ifconfig
eth0      Link encap:Ethernet  HWaddr fe:ff:00:00:5f:50
          inet addr:212.110.186.220  Bcast:212.110.186.255  Mask:255.255.255.0
          .... (plus loads more)

I wonder if it is trying to route across the internet.