[Full-Disclosure] Strange behavior in Windows 98 and 2000

[Fabio Gomes de Souza]

Hi,

Some of the Windows 98 and 2000 boxes of my customers are suddenly 
losing their TCP/IP functionality. After a reboot, they become normal 
again for some time until the TCP/IP stack gets crazy again.

- After the craziness takes place, Win2K it is still able to reach the 
local network, but it won't cross any router.

- Windows 98 does not even reach the local net.

- Both systems are able to ping the local net and the outside.

- Current TCP connections still work, but you cannot establish new ones.

- Both systems are behind linux NAT firewalls.

Weird. Are you guys noting the same behaviour?

I'm scared. :D


Fabio Gomes de Souza