Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 
Step-by-Step Configuration and Troubleshooting Best Practices for the NGFW, NGIPS and AMP Technologies A Visual Guide to the Cisco Firepower Threat Defense (FTD)
New Member

SNMP monitor VPN traffic to ASA firewall

From a Linux system, using the appropriate snmp command, I can get the traffic counters on any interface, so therefore I can monitor total traffic through any interface on the ASA 5520 firewall. No problem there.

$ snmpwalk -Os -c community -v 1 firewall.address | grep Octets

ifInOctets.1 = Counter32: 2387591805

ifInOctets.2 = Counter32: 3256166813

ifInOctets.3 = Counter32: 263478072

ifInOctets.5 = Counter32: 2954139109

ifOutOctets.1 = Counter32: 3995534498

ifOutOctets.2 = Counter32: 928367724

ifOutOctets.3 = Counter32: 2103539651

ifOutOctets.5 = Counter32: 2633864984

Now, there's a couple VPN tunnels terminated on this firewall. I would like to monitor, with SNMP, the traffic through the VPN tunnels. I can't find the place in SNMP where those traffic counters are.

I did an snmpwalk on that firewall and looked at the output, but couldn't find anything that may suggest any relation to VPN.

Can somebody shed some light please?

CreatePlease to create content