With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cSipStatsClientLengthRequiredOuts
Cisco Sip Stats Client Length Required Outs
1.3.6.1.4.1.9.9.152.1.2.4.24
This object reflects the total number of Length Required (411) responses sent by the user agent since system startup. Outbound Length Required responses indicate that requests received by this system are being refused because of no defined Content-Length header field.
Back to CISCO-SIP-UA-MIB MIB page.
IPHost Network monitor allows you to monitor cSipStatsClientLengthRequiredOuts on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.
