ADTRAN AOS Version R10.1.0 Command Reference Manual page 991

Command Reference Guide
ip dhcp excluded-address
Use the ip dhcp excluded-address command to specify IPv4 addresses that cannot be assigned to
Dynamic Host Configuration Protocol version 4 (DHCPv4) clients. Use the no form of this command to
remove a configured IPv4 address restriction. Variations of this command include:
ip dhcp excluded-address <start ipv4 address>
ip dhcp excluded-address <start ipv4 address> <end ipv4 address>
ip dhcp excluded-address vrf <name> <start ipv4 address>
ip dhcp excluded-address vrf <name> <start ipv4 address> <end ipv4 address>
Syntax Description
<start ipv4 address>
<end ipv4 address>
vrf <name>
Default Values
By default, there are no excluded IPv4 addresses.
Command History
Release 2.1
Release 17.1
Release 18.3
Release R10.1.0
Functional Notes
The AOS DHCPv4 server (by default) allows all IPv4 addresses for the DHCPv4 pool to be assigned to
requesting clients. This command is used to ensure that the specified address or addresses are never assigned
by the DHCPv4 server. When static-addressed hosts are present in the network, it is helpful to exclude the IPv4
addresses of the host from the DHCPv4 server IPv4 address pool. This will avoid IPv4 address conflict.
VRF on AOS products allows a single physical router to be partitioned into multiple virtual routers. Each router
instance has its own route table and interface assignments. Beginning with Release 16.1, all AOS routers
supporting multiple VRF instances (multi-VRF) have an unnamed default VRF instance regardless of whether
multi-VRF is configured. Therefore, executing the abovementioned commands without specifying a VRF will
only affect the default unnamed VRF.
60000CRG0-35E
Specifies the lowest IPv4 address in the range OR a single IPv4 address to
be excluded.
Optional. Specifies the highest IPv4 address in the range. This field is not
required when specifying a single IPv4 address.
IPv4 addresses should be expressed in dotted decimal notation (for
example, 10.10.10.1).
Optional. Specifies the nondefault VPN routing and forwarding (VRF)
instance to which the IPv4 addresses are associated. If a VRF is not
specified, the default VRF is assumed.
Command was introduced.
Command was expanded to include the vrf parameter.
Command syntax was changed to remove the hyphen and the server
keyword in ADTRAN internetworking products.
Command syntax was changed to remove the hyphen and the server
keyword in ADTRAN voice products.
Copyright © 2012 ADTRAN, Inc.
Global Configuration Mode Command Set
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