All MIBs › CIENA-CES-DHCP-RELAY-MIB › cienaCesDhcpRelayAgentTrustMode
cienaCesDhcpRelayAgentTrustMode
Module: CIENA-CES-DHCP-RELAY-MIB
OID (symbolic): CIENA-CES-DHCP-RELAY-MIB::cienaCesDhcpRelayAgentTrustMode
OID (numeric): 1.3.6.1.4.1.1271.2.3.6.1.5.1.3
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-create
Description: This MIB object is used to set the port as client trusted, server trusted, dual-role trusted or not trusted.
What is cienaCesDhcpRelayAgentTrustMode?
Sets a port's DHCP trust role: trusted for client traffic, trusted for server traffic, trusted for both, or not trusted at all. This is the core anti-spoofing control for DHCP relay/snooping -- only ports marked serverTrust or dualRoleTrust are allowed to source DHCP server responses (OFFER/ACK), so an admin who leaves an uplink port at the default unTrust(4) will find real DHCP server replies silently dropped on that port. A port facing the actual DHCP server should be set to serverTrust(2), while subscriber-facing access ports are typically left at clientTrust(1) or unTrust(4) to block rogue DHCP servers from being plugged in by end users.
OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4.1.1271 | ciena | CIENA-SMI |
| 1.3.6.1.4.1.1271.2 | cienaCes | CIENA-SMI |
| 1.3.6.1.4.1.1271.2.3 | cienaCesStatistics | CIENA-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1271.2.3.6 | cienaCesDhcpRelayMIB | CIENA-CES-DHCP-RELAY-MIB |
| 1.3.6.1.4.1.1271.2.3.6.1 | cienaCesDhcpRelayAgent | CIENA-CES-DHCP-RELAY-MIB |
| 1.3.6.1.4.1.1271.2.3.6.1.5 | cienaCesDhcpRelayAgentTrustTable | CIENA-CES-DHCP-RELAY-MIB |
| 1.3.6.1.4.1.1271.2.3.6.1.5.1 | cienaCesDhcpRelayAgentTrustEntry | CIENA-CES-DHCP-RELAY-MIB |
| 1.3.6.1.4.1.1271.2.3.6.1.5.1.3 | cienaCesDhcpRelayAgentTrustMode | CIENA-CES-DHCP-RELAY-MIB |