My company is running Solaris 10 and we are having a weird issue with the Ip Filters on it. We've narrowed it down to the ipf. For some reason, when just one box pings it, it has about 10-50% packet loss. BUT!!! when two different (or the same) boxes ping it at once, it gets 100% on both boxes.

Any clue what's up or what to look for?

When we stopped ipf, it worked fine.

For you all 130+ people that looked at this and didn't reply, here is the answer...

pass out quick proto icmp from xxx.xxx.xxx.xxx/32 to any keep state

If you remove the keep state line to read:

pass out quick proto icmp from xxx.xxx.xxx.xxx/32 to any

It works without a glitch.

Any of you know why this is?