With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
adslAtucDmtPhysEntry
ADSL Atuc Dmt Physical Entry
1.3.6.1.2.1.10.94.1.1.16.2.1.2.1
A set of physical-layer parameters for an ATU-C class device supported by the system. There exists an entry for each ifEntry with an ifType of adsl(94).
Back to ADSL-DMT-LINE-MIB MIB page.
IPHost Network monitor allows you to monitor adslAtucDmtPhysEntry 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.