3com S7906E Guide De Référence

 

1-5 

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. 

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 the same address range in the undo dhcp server forbidden-ip 

command instead of specifying one IP address. 

z 

Using the dhcp server forbidden-ip command repeatedly can exclude multiple IP address ranges 

from allocation. 

Related commands: dhcp server ip-pool, network, static-bind ip-address. 

# 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 

dhcp server ip-pool pool-name 

undo dhcp server ip-pool pool-name 

System view 

2: System level 

pool-name: Global address pool name, which is a unique pool identifier, a string of 1 to 35 characters. 

Use the dhcp server ip-pool command to create a DHCP address pool and enter its view. If the pool 

was created, you will directly enter its view.