Network discovery and broadcasts
Hi all!
I have to discover network range:
10.0.0.0 - 10.3.0.0
My regular addresses for gateways are 10.X.X.1 and for switches are 10.X.X.2. unfortunately, Zabbix doesn't allow to use wildcard masks, so I had to use three rules like:
10.0.0.0/16
10.1.0.0/16
10.2.0.0/16
...and the appropriate action rules for them.
But!
Zabbix finds not only regular addresses like 10.0.0.1, 10.0.1.1 and etc. but also broadcasts, like 10.0.0.255 10.0.1.255 and others. Sure, it receives answers from the active network devices but how can I filter such "non-legitimate" responses?
Thanks!
I have to discover network range:
10.0.0.0 - 10.3.0.0
My regular addresses for gateways are 10.X.X.1 and for switches are 10.X.X.2. unfortunately, Zabbix doesn't allow to use wildcard masks, so I had to use three rules like:
10.0.0.0/16
10.1.0.0/16
10.2.0.0/16
...and the appropriate action rules for them.
But!
Zabbix finds not only regular addresses like 10.0.0.1, 10.0.1.1 and etc. but also broadcasts, like 10.0.0.255 10.0.1.255 and others. Sure, it receives answers from the active network devices but how can I filter such "non-legitimate" responses?
Thanks!