Each host attached to an IP network has a unique IP address. The PortMaster supports a local host table to map hostnames to IP addresses. Hostnames are for the convenience of the administrator who uses the command line interface, and to record hostnames entered by users at the host prompt. To avoid confusion and reduce administrative overhead, Lucent recommends using the Domain Name Service (DNS) or Network Information Service (NIS) for hostname resolution rather than using the local host table.

Displaying Host Information

• show table host

Summary of Host Commands

The host table commands in Table 16-1 are used to configure the host table.  

Host Table Commands

Command Syntax
add host Ipaddress String	- see page 16-2
delete host Ipaddress|String	- see page 16-2
save host	- see page 16-3
show table host	- see page 16-3

Note ¯ The PortMaster always checks the local host table before using DNS or NIS.

Description of Host Commands

add host

This command adds a host to the host table.

add host Ipaddress String

Ipaddress	IP address of the host.
String	String of printable characters representing the hostname. Maximum length is 39 characters.

Note ¯ You can add duplicate IP addresses, but hostnames must be unique.

Example

delete host

This command deletes a host from the host table.

delete host Ipaddress|String

Ipaddress	IP address of the host.
String	Hostname.

Note ¯ If you delete a duplicate IP address, the first IP address from the host table will be deleted.

Examples

save host

This command writes the current host table to the nonvolatile RAM of the PortMaster.

save host

Usage

Example

show table host

This command displays the host table from the PortMaster.

show table host

Example

Command> show table host
192.168.200.4	chopin
172.16.200.3	elgar