Command Manual – DHCP
H3C S7500E Series Ethernet Switches Chapter 1 DHCP Server Configuration Commands
1-5
undo dhcp server forbidden-ip low-ip-address [ high-ip-address ]
View
System view
Parameters
low-ip-address: Start IP address of the IP address range to be excluded from dynamic
allocation.
high-ip-address: End IP address of the IP address range to be excluded from dynamic
allocation. The end IP address must have a higher sequence than the start one.
Description
Use the dhcp server forbidden-ip command to exclude IP addresses from dynamic
allocation.
Use the undo dhcp server forbidden-ip command to remove the configuration.
By default, all IP addresses in a DHCP address pool are assignable except IP
addresses of the DHCP server interfaces.
Note that:
z When you use the dhcp server forbidden-ip command to exclude an IP address
that is bound to a user from dynamic assignment, the address can be still assigned
to the user.
z When you use the undo dhcp server forbidden-ip command to remove the
configuration, the specified address/address range must be consistent with the
one specified with the dhcp server forbidden-ip command. If you have
configured to exclude an address range from dynamic assignment, you need to
specify an address range in the undo dhcp server forbidden-ip command
instead of specifying one IP address.
Related commands: dhcp server ip-pool, network, static-bind ip-address.
Examples
# Exclude the IP address range 10.110.1.1 to 10.110.1.63 from dynamic allocation.
<Sysname> system-view
[Sysname] dhcp server forbidden-ip 10.110.1.1 10.110.1.63
1.1.7 dhcp server ip-pool
Syntax
dhcp server ip-pool pool-name
undo dhcp server ip-pool pool-name
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