Thanks for the feedback so far but it's not viruses.
Virus checks turned up nothing and it's definitely not the blaster virusas
all the machines were patched for that when it came out. I've used both
Norton as well as F-Secure to check the PC's but nothing turns up
There is nothing special about these PC's either. Standard build of windows
2000 and most probably installed from the same disk set.
Master Browser discovery ??? but that I thought was netbios
Still hunting :-(
----- Original Message -----
From: "Tikiri Wicks"
Hi
Just wondering if anyone can shed some light on this. 13 PC's in a network of about 300 PC's keep incrementally pinging everything in their netmask
For example PC with IP 172.20.10.2 will start pinging 172.20.10.1 and ping all the way upto 172.20.10.255. Then it starts over These are all windows 2000 machines and each one is generating about a hundred icmp packets per second incrementally counting through every destination IP in their netmask. If I change one of the machines netmask to /16 then it starts pinging everything in that entire class b starting at 1.1 and incrementally counting upto the top. These are all normal windows 2000 PC's
Does anyone have an idea on this ???
Cheers
Tikiri
_______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog