38
Examples
# Specify the lease duration as one day, two hours, three minutes, and four seconds in DHCP address
pool 0.
<Sysname> system-view
[Sysname] dhcp server ip-pool 0
[Sysname-dhcp-pool-0] expired day 1 hour 2 minute 3 second 4
forbidden-ip
Syntax
forbidden-ip
ip-address
&<1-8>
undo forbidden-ip
{
ip-address
&<1-8> |
all
}
View
DHCP address pool view
Default level
2: System level
Parameters
ip-address
&<1-8>: Specifies the IP addresses to be excluded from dynamic allocation. &<1-8> indicates
that you can specify up to eight IP addresses, separated with spaces.
all
: Excludes all IP addresses from dynamic allocation.
Description
Use the
forbidden-ip
command to exclude IP addresses from dynamic allocation in an extended address
pool.
Use the
undo forbidden-ip
command to cancel specified or all excluded IP addresses.
By default, all IP addresses in an extended address pool are assignable except the IP addresses of the
DHCP server interfaces.
NOTE:
Only the extended address pools support this command.
IP addresses specified with the
forbidden-ip
command in DHCP address pool view are excluded from
dynamic address allocation in the current extended address pool only. They are assignable in other address
pools.
Repeatedly using the
forbidden-ip
command can exclude multiple IP address ranges from dynamic
allocation.
Related commands:
dhcp server ip-pool
and
display dhcp server forbidden-ip
.
Examples
# Exclude IP addresses 192.168.1.3 and 192.168.1.10 from dynamic allocation for extended address pool
0.
<Sysname> system-view
[Sysname] dhcp server ip-pool 0 extended
[Sysname-dhcp-pool-0] forbidden-ip 192.168.1.3 192.168.1.10
