I'm using The Dude 2.2 for my network monitoring. And seems that Dude shows incorrectly some services running on devices.
All my devices (mickrotik, linux-based servers) have following services: ssh, telnet, web. Some of them also have https, dns, etc. And all of them reply to ping.
The problem is that The Dude shows some services as unstable (usually ssh, telnet, web). Usually it shows ssh as orange, and telnet/web as red. But really services are ok. I can connect to web, ssh, etc. Also, The Dude shows ping service correctly.
Maybe the reason is that network is too big, about 200 devices? And links between devices are up to 400 km? But, anyway, i can connect to any device via web or ssh normally...
Anybody knows solution? Cos ping is not enough for me, i'd like to monitor other services too.