Command Reference Guide

82 ● dhcp server forbidden-ip 3Com Router 5000 Family and Router 6000 Family
Command Reference
dhcp server forbidden-ip
Purpose Use the dhcp server forbidden-ip command to exclude IP addresses in a
specified range to participate in the auto-allocation.
Use the undo dhcp server forbidden-ip command to delete the
configuration.
Syntax dhcp server forbidden-ip low-ip-address [ high-ip-address ]
undo dhcp server forbidden-ip low-ip-address [ high-ip-address ]
Parameters low-ip-address
The low IP address that does not participate in the
auto-allocation.
high-ip-address
The high IP address that does not participate in the
auto-allocation. It must belong to the same segment
to which the
low-ip-address belongs as well and
must not be smaller than the
low-ip-address. If
this parameter is not specified, there will be only one IP
address, that is,
low-ip-address.
Default By default, all the IP addresses in address pools participate in the auto-allocation.
Example Reserve the IP addresses in the range of 10.110.1.1 to 10.110.1.63 so that these
addresses will not participate in the address auto-allocation.
[3Com] dhcp server forbidden-ip 10.110.1.1 10.110.1.63
View This command can be used in the following views:
■ System view
Description You may configure multiple IP address ranges that do not participate in
auto-allocation.
Related Commands ■ dhcp server ip-pool
■ network
■ static-bind ip-address