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Introduction Configuring DHCP Relay

Software Reference for SwitchBlade x3100 Series Switches (Network Management)

7-40

Example SET DHCPRELAY x3112 MODE=RELAY CIDFORMAT=TR101DEFAULT

CIDFORMAT Used to uniquely identify the subscriber port a DHCP

packet is received on. DHCP Servers can use the CID

for assigning IP addresses, and (in conjunction with the

giaddr value) for lease reports/statistics. The CID is

used by the Relay Agent to direct server responses

(DHCPOFFER, DHCPACK, DHCPNACK) back to the

proper circuit (interface).

*NOTE: this value is an ASCII string of no more than 63

characters.

AUTO - In AUTO format, the DHCPRELAY Agent will

set the Option 82 Circuit Identifier (CID) to the

vid.slot.port.subif or slot.port.subif.vid value of the client

interface. The order of the AUTO format is determined

by the CIDORDER parameter, which is controlled via

the "SET DHCP CIDORDER" command.

TR101DEFAULT - The DHCPRELAY Agent will set the

Option 82 CID to a TR101 value 'shelf-id eth slot/port/

subif:vid' representing the client interface. Shelf-id is

filled in from the SHELFID parameter.

AUTO

Option Description Default Value

Allied Telesis SwitchBlade x3100 Series User Manual

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