DHCP

Address pool type

Specifies the type of an address pool to be created. The options are as follows:

• Global address pool
• Interface address pool

Address pool name

Specifies the name of a global address pool.

This parameter is available only when Address pool type is set to Global address pool.

Subnet address

Specifies a network segment address that can be allocated from a global address pool.

This parameter is available only when Address pool type is set to Global address pool.

Subnet mask

Specifies the subnet mask of the IP address allocated to a DHCP client.

This parameter is available only when Address pool type is set to Global address pool.

Select Interface

Specifies the interface for which an address pool is to be configured.

This parameter is available only when Address pool type is set to Interface address pool.

Interface IP address

Specifies the IP address of the current interface, namely, the gateway address of a DHCP client.

This parameter is available only when Address pool type is set to Interface address pool.

Mask

Specifies the subnet mask of the IP address allocated to a DHCP client.

This parameter is available only when Address pool type is set to Interface address pool.

Vendor-defined

Specifies a user-defined option for an address pool. The options are as follows:

• None: indicates that no user-defined option is configured for an address pool.
• ascii: indicates that the user-defined option is an ASCII character string.
• cipher: indicates that the user-defined option is a password string.
• hex: indicates that the user-defined option is a hexadecimal number.
• ip-address: indicates that the user-defined option is an IP address. One to eight IP addresses can be specified.
• sub-option: indicates that a sub-option is configured for the user-defined option. If sub-option is selected, you also need to set the sub-option parameter.

Lease

Specifies the lease of an IP address allocated to a DHCP client.

Primary DNS server

Specifies the primary DNS server address allocated to a DHCP client.

Secondary DNS server

Specifies the secondary DNS server address allocated to a DHCP client.

Primary WINS server

Specifies the primary WINS server address allocated to a DHCP client.

Secondary WINS server

Specifies the secondary WINS server address allocated to a DHCP client.

DNS domain name

Specifies the domain name suffix allocated by a DNS server to a DNS client.

Gateway IP

Specifies an egress gateway IP address in a global address pool.

• To create a gateway IP address, enter the gateway IP address, and click . You can repeat the preceding operations to create a maximum of eight gateway IP addresses.
• To delete one or more gateway IP addresses, select the check boxes of the gateway IP addresses or select the check box next to Gateway IP, and click .

This parameter is available only when Address pool type is set to Global address pool.

Not allocated IP

Specifies an IP address that will not be dynamically allocated to clients.

• To create IP addresses that will not be dynamically allocated, enter the start and end IP addresses, and click . You can repeat the preceding operations to create multiple IP addresses or IP address segments that will not be dynamically allocated to clients.
• To delete one or more IP addresses that are originally not dynamically allocated, select the check boxes of the IP addresses or select the check box next to Not Allocated IP, and click .

Address pool interface

Specifies an interface that can use addresses in the address pool. Users going online through this interface can obtain configuration information, such as IP addresses, from the global address pool.

• To create an interface that can use addresses in the address pool, select the interface, and click . You can repeat the preceding operations to create a maximum of eight interfaces that can use addresses in the address pool.
• To delete one or more interfaces that can use addresses in the address pool, select the check boxes of the interfaces or select the check box next to Address Pool Interface, and click .

This parameter is available only when Address pool type is set to Global address pool.

Statically bound IP/MAC

Statically binds an IP address that can be dynamically allocated to the MAC address of a DHCP client.

• To create a static address binding entry, enter an IP address and a MAC address that are to be statically bound, and click . You can repeat the preceding operations to create multiple static address binding entries.
• To delete one or more static address binding entries, select the check boxes of the static address binding entries or select the check box next to Statically Bound IP/MAC, and click .

NetBIOS type

Specifies the NetBIOS node type for a DHCP client. The options are as follows:

• Not specified: indicates that no NetBIOS node type is specified.
• b-node: indicates a node in broadcast mode. A b-node obtains the mapping between host names and IP addresses in broadcast mode.
• p-node: indicates a node in hybrid mode. A p-node is a b-node enabled with the peer-to-peer communication mechanism.
• m-node: indicates a node in mixed mode. An m-node is a p-node with some broadcast features.
• h-node: indicates a node in peer-to-peer mode. An h-node obtains the mapping between host names and IP addresses by communicating with a NetBIOS server.

Bind IP

Binds an IP address in the address pool to a fixed MAC address.

Reserve IP

Specifies an IP address that will not be dynamically allocated from the address pool.

Fix IP

Binds an IP address that is in use or has expired in the address pool to a MAC address. The IP address is directly allocated to the specified client when it goes online next time.

Reclaim IP

Reclaims an IP address that is in use, in conflict, or has expired from the address pool. After being reclaimed, the IP address becomes idle and can be allocated to a client again.

Unbind IP

Releases an IP address that is statically bound to a MAC address.

Not Reserve IP

Releases a configured IP address that is originally not dynamically allocated.

Refresh

Refreshes the information displayed on the page.

Interface Name

Specifies the name of an interface.

Interface IP Address

Specifies the IP address of an interface.

Interface Address Mask

Specifies the subnet mask.

Server IP

Specifies the IP address of the DHCP server.

• To create a DHCP server IP address, enter the DHCP server IP address, and click .
• To delete one or more DHCP server IP addresses, select the check boxes of the DHCP server IP addresses or select the check box next to Server IP, and click .