3com 5500-ei pwr Guía De Referencia

 

1-13 

undo dhcp server forbidden-ip low-ip-address [ high-ip-address ] 

System view 

low-ip-address: IP address that is not available for being assigned to DHCP clients automatically (An IP 

address of this kind is known as a forbidden IP address). This argument also marks the lower end of the 

range of the forbidden IP addresses. 

high-ip-address: IP address that is not available for being assigned to DHCP clients. This argument 

also marks the higher end of the range of the forbidden IP addresses. Note that this argument cannot 

be less than the low-ip-address argument. If you do not provide this argument, only the IP address 

specified by the low-ip-address argument is forbidden. 

Use the dhcp server forbidden-ip command to forbid the specified IP addresses in a DHCP address 

pool to be automatically assigned. 

Use the undo dhcp server forbidden-ip command to cancel the forbiddance. 

By default, all IP addresses in an address pool are allowed to be automatically assigned. 

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

static-bind. 

 

z 

When you execute the undo dhcp server forbidden-ip command, make sure that the specified 

address range does not contain any statically-bound IP address.  

z 

You can configure multiple IP address segments that are not to be automatically configured by 

executing the dhcp server forbidden-ip command several times.  

z 

If an IP address that is not to be automatically assigned has been configured as a statically-bound 

IP address, the DHCP server still assigns this IP address to the client whose MAC address or ID 

has been bound.  

 

# Enter system view. 

<Sysname> system-view 

System View: return to User View with Ctrl+Z. 

# Forbid the IP addresses in the range 10.110.1.1 to 10.110.1.63 to be automatically assigned. 

[Sysname] dhcp server forbidden-ip 10.110.1.1 10.110.1.63 

dhcp server ip-pool pool-name