All MIBs › CT-FASTPATH-DHCPSNOOPING-MIB › ctAgentDhcpSnoopingVerifyMac
ctAgentDhcpSnoopingVerifyMac
Module: CT-FASTPATH-DHCPSNOOPING-MIB
OID (symbolic): CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingVerifyMac
OID (numeric): 1.3.6.1.4.1.52.4.2.35.1.1.2
Node type: OBJECT-TYPE
Type: TruthValue
Access: read-write
Description: This object indicates whether source Mac address in the received DHCP Message needs to be verified or not.
If this object is set to 'true',verifyMac is enabled globally.
If this object is set to 'false',verifyMac is disabled globally.
What is ctAgentDhcpSnoopingVerifyMac?
This read-write TruthValue globally enables or disables verification that a DHCP message's source MAC address in the Ethernet header matches the client hardware address field inside the DHCP payload. An administrator enables this to catch spoofed DHCP packets that misrepresent their true source. For example, enabling ctAgentDhcpSnoopingVerifyMac would cause the switch to drop a DHCP packet where the Ethernet source MAC doesn't match the chaddr field, a common spoofing indicator.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.35.1.1.2 snmpwalk -v2c -c public <target> CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingVerifyMac
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.35.1.1.2.1 snmpget -v2c -c public <target> CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingVerifyMac.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.2.35.1.1.2.1 s <value>
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::ctAgentDhcpSnoopingVerifyMac 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 |
| 1.3.6.1.4.1.52.4.2.35.1.1.2 | ctAgentDhcpSnoopingVerifyMac | CT-FASTPATH-DHCPSNOOPING-MIB |