[ILUG] PAN0 killing net

[Philip Creevy]

I'am just curious as to what happened with my internal network.
on 2 machines I used IFCONFIG to bring up PAN0 but ping and 
dns stopped working internally but yet 1 of the machines that 
I tried to browse the internet worked.
ping reported destination host unreachable.
The interfaces I used were,
eth0 is 192.168.100.21
pan0 was 192.168.100.23
second machine is,
eth0 192.168.100.191
pan0 192.168.100.21
pan0 was bough up with
ifconfig pan0 192.168.100.23 netmask 255.255.255.0
Taking both pan0 interfaces down restored functionality.

Regards
Philip