Tavve zoneranger User Manual page 190

Figure 34-78. Diagnostics > SNMP page Engine IDs tab
The Diagnostic > SNMP page Engine IDs tab provides the ability to discover the SNMPv3
Engine ID, SNMP Engine Reboots and SNMP Engine Time of the specified node. If the SNMP
Engine ID has been previously discovered, the specified node's reported SNMP Engine Reboots
and SNMP Engine Time are compared to the expected values. If the result is outside of the
expected values, SNMP proxy requests for this device will be discarded.
ZoneRanger maintains a cache of SNMPv3 Engine IDs that it has previously discovered. It
uses this cache to verify SNMPv3 agents. When using this diagnostic, any other IP addresses
using the SNMP Engine ID of the specified device will also be reported. SNMP Engine Ids
discovered using this diagnostic page will not be cached. SNMP Engine IDs are only cached
when discovered via SNMP Proxy or SNMP notifications.
Note: IP addresses on the same device can use the same SNMP Engine ID. In addition,
different ports on the same node may have different SNMP Engine IDs. When more than one
device has the same SNMP Engine ID, SNMPv3 packets from the device with the lower SNMP
Engine Reboots and SNMP Engine Time may be discarded.
TACACS+/RADIUS
The Diagnostic > TACACS+/RADIUS Test page performs an authorization request that can be
used to test ZoneRanger TACACS+ and RADIUS proxy configuration.
ZoneRanger 5.5 User's Guide 190