With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alNatTranslationPort
ALTIGA Nat Translation Port
1.3.6.1.4.1.3076.2.1.2.23.2.1.6
The translated internal source port.
Back to ALTIGA-NAT-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alNatTranslationPort 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.