H3C Technologies H3C SecPath F1000-E - Manual (Page 45)

5
To do… Use the command… Remarks
or client ID
Specify the client ID
static-bind client-identifier
client-identifier
Neither is bound statically by
default.
NOTE:
•
Use the static-bind ip-address command together with static-bind mac-address or static-bind
client-identifier to accomplish a static binding configuration.
• In a DHCP address pool, if you execute the static-bind mac-address command before the static-bind
client-identifier command, the latter will overwrite the former and vice versa.
• If you use the static-bind ip-address, static-bind mac-address, or static-bind client-identifier
command repeatedly in the DHCP address pool, the new configuration will overwrite the previous one.
• The IP address of the static binding cannot be an interface address of the DHCP server. Otherwise, an
IP address conflict may occur and the bound client cannot obtain an IP address correctly.
• The ID of the static binding must be identical to the ID displayed by using the display dhcp client
verbose command on the client. Otherwise, the client cannot obtain an IP address.
• When the device serves as a DHCP client or BOOTP client, you need to configure the static binding of the
DHCP client’s ID to IP address, or the static binding of the BOOTP client's MAC to IP address on the
DHCP server; otherwise, the DHCP or BOOTP client cannot obtain a static IP address.
• If the interfaces on a DHCP client share the same MAC address, you need to specify the client ID, rather
than MAC address, in a static binding to identify the requesting interface; otherwise, the client may fail
to obtain an IP address.
Configuring dynamic address allocation
You need to specify one and only one address range using a mask for the dynamic address allocation.
To avoid address conflicts, the DHCP server excludes IP addresses used by the gateway or FTP server
from dynamic allocation.
You can specify the lease duration for a DHCP address pool different from others, and a DHCP address
pool can only have the same lease duration. A lease does not enjoy the inheritance attribute.
Follow these steps to configure dynamic address allocation for a common address pool:
To do… Use the command… Remarks
Enter system view system-view —
Enter common address pool view dhcp server ip-pool pool-name —
Specify an IP address range
network network-address
[ mask-length | mask mask ] Required
Not specified by default.
Specify the address lease duration
expired { day day [ hour hour
[ minute minute ] ] | unlimited } Optional
One day by default.
Return to system view quit —
Exclude IP addresses from
automatic allocation dhcp server forbidden-ip
low-ip-address [ high-ip-address ]
Optional
Except IP addresses of the DHCP
server interfaces, all addresses in
the DHCP address pool are
assignable by default.