Network Protocol2.4.3 dhcp server forbidden-ipSyntaxdhcp server forbidden-ip low-ipaddress [ high-ipaddress ]undo dhcp server forbidden-ip low-ipaddress [ high-ipaddress ]ViewSystem viewParameterlow-ipaddress: The minimum IP address that does not participate in theauto-allocation.high-ipaddress: The maximum IP address that does not participate in theauto-allocation. high-ipaddress and low-ipaddress should be in the same segment,and the former should be no less than the latter. If this parameter is not entered,high-ipaddress and low-ipaddress are the same.DescriptionUsing the dhcp server forbidden-ip command, you can configure the IP addressesthat do not participate in the auto-allocation in the DHCP address pool. Using theundo dhcp server forbidden-ip command, you can cancel the specified IPaddresses that do not participate in the auto-allocation.By default, no IP address that does not participate in the auto-allocation is configured.As for a network or a subnet, certain given IP addresses probably have beenoccupied by some servers or undetermined hosts, such as WWW server, gatewayand FTP servers. When performing DHCP address allocation, these addressesshould be excluded to ensure the normal operation of the network, otherwise, twohosts may be allocated with the same address, thus causing IP address allocationconflicts.By default, the DHCP server regards that all addresses in the address pool can bedynamically allocated to the client computers. If it is necessary to exclude someaddresses, use the address excluding command to avoid the allocation of theseaddresses. This configuration can be superimposed, that is, the latest configurationand the original one will take effect at the same time.The undo dhcp server forbidden-ip command can be used to delete the specifiedaddress-excluding setting. However, the setting must be totally consistent with the19
