All MIBs › CT-FASTPATH-DHCPSNOOPING-MIB › ctAgentDhcpSnoopingInvalidServerMessages
ctAgentDhcpSnoopingInvalidServerMessages
Module: CT-FASTPATH-DHCPSNOOPING-MIB
OID (symbolic): CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingInvalidServerMessages
OID (numeric): 1.3.6.1.4.1.52.4.2.35.1.1.7.1.3
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: This object indicates the number of invalid DHCP server mesaages
What is ctAgentDhcpSnoopingInvalidServerMessages?
This read-only Counter32 tracks the number of invalid DHCP server messages the switch has seen, typically DHCP server responses like OFFER or ACK arriving from untrusted ports. An administrator monitors this as the clearest sign that a rogue or unauthorized DHCP server is present on the network. For example, a nonzero and rising ctAgentDhcpSnoopingInvalidServerMessages count on an access port would strongly suggest someone has connected an unauthorized wireless router acting as a DHCP server there.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.35.1.1.7.1.3 snmpwalk -v2c -c public <target> CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingInvalidServerMessages
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.35.1.1.7.1.3.1 snmpget -v2c -c public <target> CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingInvalidServerMessages.1
Start monitoring Cabletron/Enterasys FastPath switch (DHCP snooping) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingInvalidServerMessages OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys FastPath switch (DHCP snooping) from a single console.
OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4.1.52 | cabletron | Cabletron-MIB |
| 1.3.6.1.4.1.52.4 | mibs | CTRON-AP3000-MIB |
| 1.3.6.1.4.1.52.4.2 | ctronExp | CTRON-MIB-NAMES |
| 1.3.6.1.4.1.52.4.2.35 | ctDhcpSnoopingExpMib | CTRON-MIB-NAMES |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.2.35.1 | ctFastPathDHCPSnoopingMIB | CT-FASTPATH-DHCPSNOOPING-MIB |
| 1.3.6.1.4.1.52.4.2.35.1.1 | ctAgentDhcpSnoopingConfigGroup | CT-FASTPATH-DHCPSNOOPING-MIB |
| 1.3.6.1.4.1.52.4.2.35.1.1.7 | ctAgentDhcpSnoopingStatsTable | CT-FASTPATH-DHCPSNOOPING-MIB |
| 1.3.6.1.4.1.52.4.2.35.1.1.7.1 | ctAgentDhcpSnoopingStatsEntry | CT-FASTPATH-DHCPSNOOPING-MIB |
| 1.3.6.1.4.1.52.4.2.35.1.1.7.1.3 | ctAgentDhcpSnoopingInvalidServerMessages | CT-FASTPATH-DHCPSNOOPING-MIB |