With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cSipStatsClientLengthRequiredIns
Cisco Sip Stats Client Length Required Ins
1.3.6.1.4.1.9.9.152.1.2.4.23
This object reflects the total number of Length Required (411) responses received by the user agent since system startup. Inbound Length Required responses indicate that requests issued by this system are being refused by servers because of no defined Content-Length header field.
Back to CISCO-SIP-UA-MIB MIB page.
IPHost Network monitor allows you to monitor cSipStatsClientLengthRequiredIns on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.
