With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
bsnDot11EssVpnSharedKey
bsn Dot11 Ess Vpn Shared Key
1.3.6.1.4.1.14179.2.1.1.1.22
VPN Shared Key. This applies only when bsnDot11EssVpnSharedKey is in enable state and bsnDot11EssVpnIkeAuthMode is xauthEnablePsk or presharedKey.
Back to AIRESPACE-WIRELESS-MIB MIB page.
IPHost Network monitor allows you to monitor bsnDot11EssVpnSharedKey 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.