With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvpdnSessionAttrMultilink
cvpdn Session Attr Multilink
1.3.6.1.4.1.9.10.24.1.3.2.1.12
This object indicates whether the session is part of a multilink PPP bundle, even if there is only one link or session in the bundle. If it is multilink PPP, the value is true.
Back to CISCO-VPDN-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cvpdnSessionAttrMultilink 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.