Re: ping DOS avoidance?

2007-03-15 Thread Rick Jones
I was just asked about something not too different, involving IIRC tnsping. It got me to looking at ip_sysctl.txt which has: icmp_ratelimit - INTEGER Limit the maximal rates for sending ICMP packets whose type matches icmp_ratemask (see below) to specific targets. 0 to

ping DOS avoidance?

2007-03-14 Thread Luis Carlos Cobo Rus
Hi, I'm stress testing some network devices by doing some cross flood pings among them. It occurs sometimes that one of the hosts (host foo) will stop answering to pings from other hosts. foo can ping all the other hosts, and I can use ssh back and forth, but it doesn't answer ping requests.