User guide

DHCP Client command reference Dynamic Host Configuration Protocol

5-67

iMG/RG Software Reference Manual (System Administration)

5.1.6.1.15 DHCPCLIENT SET INTERFACECONFIG AUTOIP ENABLED|DISABLED

Syntax DHCPCLIENT SET INTERFACECONFIG {<name>|<number>} AUTOIP

{ENABLED | DISABLED}

Description This command enables/disables IP address auto-configuration (Auto-IP).

Auto-IP automatically configures an IP address when a DHCP client fails to contact a

DHCP server and cannot obtain a lease. An IP address on the 169.254 subnet is automat-

ically created, and ARP requests are issued for the suggested IP address. The address is

abandoned if it already exists on the network or if any other host on the network issues

an ARP probe for that IP address.

Once an IP address has been automatically configured, the DHCP client continues to

check whether it can contact a DHCP server. If the client can contact a DHCP server and

obtain a legitimate lease, the legitimate lease will supersede the auto-configured IP

address.

Note: Even if you have enabled Auto-IP using this command, you will not be able to use IP address auto-

configuration if a DHCP server on the same network does not allow it. See the dhcpserver subnet add

option command.

Options The following table gives the range of values for each option that can be specified with

this command and a default value (if applicable).

Example --> dhcpclient set interfaceconfig mycfg autoip enabled