After reading a few posts we tried a few DoS attacks on our pm2e's running
ComOs 3.3.3
The results were quite impressive...
Ping o Death attempts...Totally ignored packets greater than 65k
TCP Sym Flood... Slowed it down but did not remove off line
Radius port udp flood... Totally ignored datagrams that weren't radius
datagrams
Overall I'm happy with the results...of course there may be other
vulnerabilitites we haven't tested..
I would recommend upgrading to the latest, stable ComOS, then try a few
DoS attacks of your own and see if you get similar results.
Rob
Systems Programmer "Open the doors of your stores
rob@fgi.net 24 hours a day"
morgan@springpatch.com Springpatch Mall
http://www.springpatch.com
On Wed, 9 Jul 1997, Brian Elfert wrote:
> My only PM2 with ten ports running 3.3.2c1 locked up pretty tight today.
> It was still generating a DTR signal to the modems, but it wouldn't give a
> login prompt after answering, and I couldn't access it via the ethernet
> port.
>
> I suspect some sort of DOS attack against the unit.
>
> Isn't there a debug setting that would show low memory, mbufs, and other
> problems that might indicate an attack in progress? All the debug
> settings on Livingston's web site don't seem to be quite what I want.
>
> Brian
>