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circuit-id (DHCP Relay Agent)

Syntax

circuit-id {prefix prefix;use-interface-description (logical | device);}

Hierarchy Level

[edit forwarding-options dhcp-relay relay-option-82],[edit forwarding-options dhcp-relay group group-name relay-option-82],[edit logical-systems logical-system-name forwarding-options dhcp-relay relay-option-82],[edit logical-systems logical-system-name forwarding-options dhcp-relay group group-name relay-option-82],[edit logical-systems logical-system-name routing-instances routing-instance-name forwarding-options dhcp-relay relay-option-82],[edit logical-systems logical-system-name routing-instances routing-instance-name forwarding-options dhcp-relay group group-name relay-option-82],[edit routing-instances routing-instance-name forwarding-options dhcp-relay relay-option-82],[edit routing-instances routing-instance-name forwarding-options dhcp-relay group group-name relay-option-82]

Release Information

Statement introduced in Junos OS Release 8.3.

Statement introduced in Junos OS Release 12.3 for EX Series switches.

Description

Specify the Agent Circuit ID suboption (suboption 1) of the DHCP relay agent information option (option 82) to include in DHCP packets destined for a DHCP server. Optionally specify that the suboption includes a prefix or textual description, or both, instead of circuit-id.

The format of the Agent Circuit ID information for Fast Ethernet or Gigabit Ethernet interfaces that do not use virtual LANs (VLANs) or stacked VLANs (S-VLANs) is as follows:

(fe | ge)-fpc/pic/port

The format of the Agent Circuit ID information for Fast Ethernet or Gigabit Ethernet interfaces that use VLANs is as follows:

(fe | ge)-fpc/pic/port:vlan-id

The format of the Agent Circuit ID information for Fast Ethernet or Gigabit Ethernet interfaces that use S-VLANs is as follows:

(fe | ge)-fpc/pic/port:svlan-id-vlan-id

The remaining statements are explained separately.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.