We successfully use NAV for keeping track of devices but more often to find out which switchport a specific computer is attached to, either by searching for an IP address or a MAC address and it works great.
We also have a lot of users directly attached to Cisco ASAs and these boxes does not give away their ARP/Neighbor cache via SNMP.
The obvious first question is: has anyone successfully solved this already?
Otherwise a "sh arp/sh ipv6 neigh" gives a parseable output and I assume this is the way to go via Expect or similar:
Asa> sh ipv6 neighbor
IPv6 Address Age Link-layer Addr State Interface
fe80::6db1:8675:5895:8db1 423 001d.d8b7.1ce3 STALE ifname
Is there a safe way to import this kind of data to NAV? Or any documentation hints that kicks me into the appropriate direction?
I assume there are logic that updates existing mac addresses and creating new ones when needed and such and I don't want to ruin our installation.
The second idea is to run some homebrewed snmp server that runs the "sh arp" in the back end and formats the output like a L3 switch would do, if that's the suggested way to go I would appreciate a decent oneliner with snmpwalk or similar that runs against a Cisco L3 switch (6500 or 6800) so I can compare the output I need to create.
Thanks in advance and thanks a lot for a great piece of software!
+46 766-18 5982