We're currently running 2.2.15pre18.
We were subjected to a ping smurf attack this week and I tried to disable
icmp broadcasts with:
echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
The pings to x.x.x.255 and x.x.x.0 still caused the machine(s) to respond.
I also tried to raise the icmp_echoreply_rate to 1000 with no effect.
Is there something I'm missing here? Why aren't these working?
________________________________________
Michael D. Black Principal Engineer
mblack@csihq.com 321-676-2923,x203
http://www.csihq.com Computer Science Innovations
http://www.csihq.com/~mike My home page
FAX 321-676-2355
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