With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cInetIcmpMsgCode
Cisco Inet Icmp Message Code
1.3.6.1.4.1.9.10.86.1.3.2.1.4
The ICMP code field of the message type being counted by this row, or the special value 256 if no specific ICMP code is counted by this row.
Back to CISCO-IETF-IP-MIB MIB page.
IPHost Network monitor allows you to monitor cInetIcmpMsgCode on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.