All MIBs › CISCO-REMOTE-ACCESS-MONITOR-MIB › crasPrimDNSServer
crasPrimDNSServer
Module: CISCO-REMOTE-ACCESS-MONITOR-MIB
OID (symbolic): CISCO-REMOTE-ACCESS-MONITOR-MIB::crasPrimDNSServer
OID (numeric): 1.3.6.1.4.1.9.9.392.1.3.21.1.26
Node type: OBJECT-TYPE
Type: InetAddress
Access: read-only
Description: The IP address of the primary DNS server assigned by the managed entity to this client session.
What is crasPrimDNSServer?
This object reports the internal DNS server IP address that the VPN gateway assigned to this specific client for the duration of the remote-access session. When a remote user reports that internal hostnames like fileserver.corp.local will not resolve, an admin can check this value to confirm the tunnel actually delivered the correct internal DNS server rather than leaving the client on its home network's DNS. A realistic value would be something like 10.1.1.53, the internal corporate DNS resolver.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.392.1.3.21.1.26 snmpwalk -v2c -c public <target> CISCO-REMOTE-ACCESS-MONITOR-MIB::crasPrimDNSServer
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.392.1.3.21.1.26.1 snmpget -v2c -c public <target> CISCO-REMOTE-ACCESS-MONITOR-MIB::crasPrimDNSServer.1
Start monitoring Cisco VPN concentrator/remote-access router with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-REMOTE-ACCESS-MONITOR-MIB::crasPrimDNSServer OID value, configure state conditions and alerts, and monitor any Cisco VPN concentrator/remote-access router from a single console.
OID Breakdown
Upper-level ancestors (8 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.392 | ciscoRemoteAccessMonitorMIB | CISCO-REMOTE-ACCESS-MONITOR-MIB |
| 1.3.6.1.4.1.9.9.392.1 | ciscoRasMonitorMIBObjects | CISCO-REMOTE-ACCESS-MONITOR-MIB |
| 1.3.6.1.4.1.9.9.392.1.3 | crasActivity | CISCO-REMOTE-ACCESS-MONITOR-MIB |
| 1.3.6.1.4.1.9.9.392.1.3.21 | crasSessionTable | CISCO-REMOTE-ACCESS-MONITOR-MIB |
| 1.3.6.1.4.1.9.9.392.1.3.21.1 | crasSessionEntry | CISCO-REMOTE-ACCESS-MONITOR-MIB |
| 1.3.6.1.4.1.9.9.392.1.3.21.1.26 | crasPrimDNSServer | CISCO-REMOTE-ACCESS-MONITOR-MIB |