With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ceipSecTunPmtu
Cisco Enhanced IP Sec Tunnel Pmtu
1.3.6.1.4.1.9.9.432.1.1.2.1.31
The Path MTU for this IPsec Phase-2 tunnel, which has been either learnt from the network or which has been specified by the administrator. The lower end of the range is 68 which is the minimum MTU for IPv4.
Back to CISCO-ENHANCED-IPSEC-FLOW-MIB MIB page.
IPHost Network monitor allows you to monitor ceipSecTunPmtu on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.
