[lug] XP floods linux network, ideas ?

[David Anselmi]

chuck morrison wrote:
[...]
> When a laptop returns to the network after being on a different network, a 
> cute little MS "feature" called apipa kicks in. When the laptop can't 
> reaffirm it's last (dhcp supplied) IP address, apipa kicks in and assigns the 
> laptop a 169.254.x.x address and proceeds to flood the network with UDP 
> (NBNS) packets advertising its new address and trying to re-establish old 
> connections via Netbios.

Have you sniffed the DHCP conversation to see whether the client gets a 
NAK when it tries to renew a bad address?  Perhaps your DHCP server is 
misconfigured:

http://www.isc.org/index.pl?/sw/dhcp/authoritative.php

Dave