Don't quite understand this one, my system is running mon to monitor a few servers/routers on my network, I have been getting excessive numbers of alerts from this system when servers on my local subnet go down, this is what I have discovered.
If I ping a bad address outside my own subnet, I get nothing until I hit ctrl+c, eg [mrroach@tncorpmrr001 mrroach]$ ping 208.128.168.26 PING 208.128.168.26 (208.128.168.26) from 10.13.1.58 : 56(84) bytes of data. --- 208.128.168.26 ping statistics --- 16 packets transmitted, 0 packets received, 100% packet loss This, AFAIK, is correct. But if I ping a bad address in my own subnet I get strange messages (after a few seconds) [mrroach@tncorpmrr001 mrroach]$ ping 10.13.1.6 PING 10.13.1.6 (10.13.1.6) from 10.13.1.58 : 56(84) bytes of data. From 10.13.1.58: Destination Host Unreachable From 10.13.1.58: Destination Host Unreachable From 10.13.1.58: Destination Host Unreachable --- 10.13.1.6 ping statistics --- 5 packets transmitted, 0 packets received, +3 errors, 100% packet loss And you can see, +3 errors listed at the end... why is this?
