Configuring a DHCP Client
•
Minimum DHCP Client Configuration on page 360
•
Configuring Optional DHCP Client Attributes on page 360
•
Verifying and Managing DHCP Client Configuration on page 361
Minimum DHCP Client Configuration
The following sample output shows the minimum configuration you must use to configure
an ACX Series router as a DHCP client. In this output, the interface is ge-0/0/0 and the
logical unit is 0.
[edit interfaces]
ge-0/0/0 {
unit 0 {
family inet {
dhcp-client
}
}
}
NOTE: To configure a DHCP client in a routing instance, add the interface in
a routing instance using the [edit routing-instances] hierarchy.
Configuring Optional DHCP Client Attributes
For an ACX Series router to operate as a DHCP client, you configure a logical interface
on the router to obtain an IP address from the DHCP local server in the network. You can
then set the client-identifier, lease time, retransmission attempts, retransmission interval,
preferred DHCP local server address, vendor class ID, and update server.
To configure optional DHCP client attributes:
1. Configure the DHCP client identifier as the routing instance name.
•
DHCP client identifier as a user ID.
[edit interfaces ge-0/0/1 unit 0 family inet dhcp-client]
user@host# set client-identifier user-id {ascii ascii | hexadecimal hexadecimal}
•
DHCP client identifier as the description of an interface.
[edit interfaces ge-0/0/1 unit 0 family inet dhcp-client]
user@host# set client-identifier use-interface-description {logical | device}
•
DHCP client identifier as a prefix:
[edit interfaces ge-0/0/1 unit 0 family inet dhcp-client]
user@host# set client-identifier prefix [host-name logical-system-name
routing-instance-name]
2. Configure the DHCP client identifier prefix as the routing instance name.
[edit interfaces ge-0/0/1 unit 0 family inet dhcp-client]
Copyright © 2017, Juniper Networks, Inc.360
ACX Series Universal Access Router Configuration Guide
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