6-6
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter common address pool view
dhcp server ip-pool
pool-name
—
Specify the IP address of the binding
static-bind ip-address
ip-address
[
mask-length
|
mask
mask
]
Required
No IP addresses are statically
bound by default.
Specify the MAC
address
static-bind mac-address
mac-address
Specify the
MAC address
or client ID
Specify the client ID
static-bind client-identifier
client-identifier
Required to configure either of
the two
Neither is bound statically by
default.
z
Use the
static-bind ip-address
command together with
static-bind mac-address
or
static-bind
client-identifier
to accomplish a static binding configuration.
z
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.
z
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.
z
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.
z
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.
z
You need to configure the static binding of a DHCP client’s ID to IP address, or the static binding
of a BOOTP client's MAC to IP address on the DHCP server; otherwise, the DHCP or BOOTP
client cannot obtain a static IP address.
z
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.
A DHCP address pool can only have one lease configured. A lease does not have the inheritance
attribute.