Including A Prefix In Dhcp Options - Juniper EX3400 Features Manual

Including a Prefix in DHCP Options

Copyright © 2017, Juniper Networks, Inc.
[edit forwarding-options dhcp-relay relay-option-82]
user@host# set circuit-id
To insert the Agent Remote ID:
[edit forwarding-options dhcp-relay relay-option-82]
user@host# set remote-id
To insert both, configure both set commands.
(Optional) Configure a prefix that is used in the option 82 information in the DHCP
3.
packets.
See "Including a Prefix in DHCP Options" on page
(Optional) Configure the DHCP relay agent to include the interface's textual description
4.
instead of the interface identifier in the option 82 information.
See "Including a Textual Description in DHCP Options" on page
When you configure the DHCP relay agent to include DHCP options in the packets that
the relay agent sends to a DHCP server, you can specify that the relay agent add a prefix
to the DHCP option. You can add a prefix to the following DHCP options:
DHCPv4 option 82 Agent Circuit ID (suboption 1)
DHCPv4 option 82 Agent Remote ID (suboption 2)
DHCPv6 option 18 Relay Agent Interface-ID
DHCPv6 option 37 Relay Agent Remote-ID
The prefix is separated from the DHCP option information by a colon (:), and it can include
any combination of the
host-name
options. The DHCP relay agent obtains the values for the
and routing-instance-name
If you include the
host-name
device configured with the
If you include the
logical-system-name
system name configured with the
hierarchy level.
If you include the
routing-instance-name
instance name configured with the
routing-instances] hierarchy level or at the
hierarchy level.
routing-instances]
If you include the hostname and either or both of the logical system name and the routing
instance name in the prefix, the hostname is followed by a forward slash (/). If you include
both the logical system name and the routing instance name in the prefix, these values
are separated by a semicolon (;).
63.
,
logical-system-name
as follows:
option, the DHCP relay agent uses the hostname of the
statement at the
host-name
option, the DHCP relay agent uses the logical
statement at the
logical-system
option, the DHCP relay agent uses the routing
routing-instance
[edit logical-system logical-system-name
Chapter 4: DHCP Relay Agent
65.
, and
routing-instance-name
,
host-name logical-system-name
hierarchy level.
[edit system]
[edit logical-system]
statement at the
[edit
,
63