Group-Specific Dhcp Local Server Options - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide
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Group-Specific DHCP Local Server Options

328
dhcp-relay group sapphire interface ge-1/0/0.25 upto ge-1/0/0.35
Two ranges cannot overlap, either within a group or across groups. Overlapping occurs
when two interface ranges share common subunit space but neither range is a proper
subset of the other. The following ranges overlap:
interface ge-1/0/0.10 upto ge-1/0/0.30
interface ge-1/0/0.20 upto ge-1/0/0.40
A range can contain multiple nested ranges. A nested range is a proper subset of
another range. When ranges are nested, the smallest matching range applies.
In the following example, the three ranges nest properly:
interface ge-1/0/0.10 upto ge-1/0/0.30
interface ge-1/0/0.12 upto ge-1/0/0.15 exclude
interface ge-1/0/0.25 upto ge-1/0/0.29 exclude
Discrete interfaces take precedence over ranges. In the following example, interface
ge-1/0/0.20 takes precedence and enforces an interface client limit of
interface ge-1/0/0.10 upto ge-1/0/0.30
interface ge-1/0/0.15 upto ge-1/0/0.25 exclude
interface ge-1/0/0.20 overrides interface-client-limit 5
Extended DHCP Local Server Overview on page 315
Address-Assignment Pools Overview on page 317
Grouping Interfaces with Common DHCP Configurations on page 326
Guidelines for Configuring Interface Ranges on page 327
You can include the
interface
dhcp-local-server group group-name]
server configuration options, and at the
level to set global DHCP local server configuration options. Statements configured at
the
[edit system services dhcp-local-server group group-name]
to the named group of interfaces, and override any global DHCP local server settings
configured with the same statements at the
hierarchy level.
In a routing instance, include the
routing-instances <routing-instance-name> system services dhcp-local-server group
group-name] hierarchy level.
—Specify one or more interfaces, or a range of interfaces, that are within the
interface
specified group.
—Override the default configuration settings for the extended DHCP local
overrides
server. For information, see Overriding Default DHCP Local Server Configuration Settings.
and statements at the
overrides
hierarchy level to set group-specific DHCP local
[edit system services dhcp-local-server]
[edit system services dhcp-local-server]
and
interface overrides
Copyright © 2017, Juniper Networks, Inc.
5 .
[edit system services
hierarchy
hierarchy level apply only
statement at the
[edit