Dhcp Server Ip-Pool - H3C S3100 Series Command Manual

# 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

Syntax
dhcp server ip-pool pool-name
undo dhcp server ip-pool pool-name
View
System view
Parameters
pool-name: Name of a DHCP address pool, which uniquely identifies the address pool. This argument
is a string of 1 to 35 characters.
Description
Use the dhcp server ip-pool command to create a global DHCP address pool and enter DHCP
address pool view. If the address pool identified by the pool-name argument already exists, this
command leads you to DHCP address pool view.
Use the undo dhcp server ip-pool command to remove a specified DHCP address pool.
By default, no global DHCP address pool is created.
Related commands: dhcp enable.
To improve security and avoid malicious attack to the unused SOCKETs, S3100 Ethernet switches
provide the following functions:
UDP 67 and UDP 68 ports used by DHCP are enabled only when DHCP is enabled.
UDP 67 and UDP 68 ports are disabled when DHCP is disabled.
The corresponding implementation is as follows:
After a DHCP address pool is created by executing the dhcp server ip-pool command, the UDP
67 and UDP 68 ports used by DHCP are enabled.
After a DHCP address pool is deleted by executing the undo dhcp server ip-pool command and
all other DHCP functions are disabled, UDP 67 and UDP 68 ports used by DHCP are disabled.
Examples
# Enter system view.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
# Create DHCP address pool 0.
[Sysname] dhcp server ip-pool 0
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