All MIBs › TIMETRA-VRTR-MIB › vRtrIfDHCPLayer2Header
vRtrIfDHCPLayer2Header
Module: TIMETRA-VRTR-MIB
OID (symbolic): TIMETRA-VRTR-MIB::vRtrIfDHCPLayer2Header
OID (numeric): 1.3.6.1.4.1.6527.3.1.2.3.19.1.34
Node type: OBJECT-TYPE
Type: TruthValue
Access: read-create
Description: The value of vRtrIfDHCPLayer2Header specificies, together with the value of object vRtrIfDHCPAntiSpoofMacAddr, the MAC address that is used in anti-spoof entries for the lease states on this interface.
When it is set to 'false (2)', the client hardware address from the DHCP payload, stored in TIMETRA-SERV-MIB::svcDhcpLseStateChAddr, is used.
When it is set to 'true (1)', the behavior depends on the value of vRtrIfDHCPAntiSpoofMacAddr. If vRtrIfDHCPAntiSpoofMacAddr is set to all zeros, the source MAC address in the L2 header of the DHCP packet is used. If vRtrIfDHCPAntiSpoofMacAddr is configured, then its value is used.
What is vRtrIfDHCPLayer2Header?
This OID controls whether the DHCP security system uses the hardware address from the network frame header or from the DHCP message itself when checking for spoofed requests. Setting this correctly prevents attackers from masquerading as legitimate devices during IP address assignment. A network security engineer would configure this when hardening DHCP security against devices claiming false hardware addresses.
OID Breakdown
Upper-level ancestors (13 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 |
| 1.3.6.1.4.1.6527 | timetra | ALCATEL-IND1-TIMETRA-GLOBAL-MIB |
| 1.3.6.1.4.1.6527.3 | timetraProducts | ALCATEL-IND1-TIMETRA-GLOBAL-MIB |
| 1.3.6.1.4.1.6527.3.1 | tmnxSRMIB | ALCATEL-IND1-TIMETRA-GLOBAL-MIB |
| 1.3.6.1.4.1.6527.3.1.2 | tmnxSRObjs | ALCATEL-IND1-TIMETRA-GLOBAL-MIB |
| 1.3.6.1.4.1.6527.3.1.2.3 | tmnxVRtrObjs | ALCATEL-IND1-TIMETRA-VRTR-MIB |
| 1.3.6.1.4.1.6527.3.1.2.3.19 | vRtrIfDHCPTable | ALCATEL-IND1-TIMETRA-VRTR-MIB |
| 1.3.6.1.4.1.6527.3.1.2.3.19.1 | vRtrIfDHCPEntry | ALCATEL-IND1-TIMETRA-VRTR-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.6527.3.1.2.3.19.1.34 | vRtrIfDHCPLayer2Header | TIMETRA-VRTR-MIB |