Circuit-Id - Juniper JUNOS OS 10.3 - SOFTWARE Manual

circuit-id

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Copyright © 2010, Juniper Networks, Inc.
circuit-id {
prefix hostname;
use-interface-description;
use-vlan-id;
}
[edit ethernet-switching-options secure-access-port vlan (all | vlan-name) dhcp-option82]
[edit forwarding-options helpers bootp dhcp-option82]
[edit forwarding-options helpers bootp interface interface-name dhcp-option82]
Statement introduced in Junos OS Release 9.3 for EX Series switches.
Configure the suboption (suboption 1) of DHCP option 82 (the DHCP relay
circuit-id
agent information option) in DHCP packets destined for a DHCP server. This suboption
identifies the circuit (interface and/or VLAN) on which the DHCP request arrived.
The format of the
circuit-id
is interface-name:vlan-name
The remaining statements are explained separately.
If DCHP option 82 is enabled on the switch, the circuit ID is supplied by default in the
format interface-name:vlan-name
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Example: Setting Up DHCP Option 82 on an EX Series Switch with No Relay Agent
Between Clients and DHCP Server on page 2898
Example: Setting Up DHCP Option 82 with an EX Series Switch as Relay Agent Between
Clients and a DHCP Server on page 2895
Setting Up DHCP Option 82 on the Switch with No Relay Agent Between Clients and
DHCP Server (CLI Procedure) on page 2929
Setting Up DHCP Option 82 with the Switch as a Relay Agent Between Clients and
DHCP Server (CLI Procedure) on page 2926
[edit forwarding-options] Configuration Statement Hierarchy on page 51
RFC 3046, DHCP Relay Agent Information Option, at
Chapter 98: Configuration Statements for Port Security
information for Gigabit Ethernet interfaces that use VLANs
. On a Layer 3 interface, the format is just
or, on a Layer 3 interface, just
interface-name.
interface-name .
http://tools.ietf.org/html/rfc3046.
2953