With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
tn3270sIpClientAddr
tn3270s Ip Client Addr
1.3.6.1.4.1.9.9.54.1.4.1.1.1
The ip address of the TN3270 client.
Back to CISCO-TN3270SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor tn3270sIpClientAddr on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.