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Configuring the Data Link Layer Protocol for E1, T1, and Serial Interfaces
Configuring the Logical Interface
You should ensure that the DHCP client receives an IP address so that these
discovery messages do not consume router resources or bandwidth on your
Frame Relay link. To determine whether the Frame Relay subinterface has
been assigned an IP address, enter the following command from the enable
mode context:
ProCurve# show interface frame-relay <number.subinterface number>
Configuring a Client Identifier. By default, the Secure Router OS popu-
lates the client identifier with the media type and the interface’s media access
control (MAC) address. You can specify that the DHCP client uses the MAC
address of an Ethernet port, or you can change the client identifier to a
customized MAC address.
To configure a client identifier when you enable the DHCP client, enter:
Syntax: ip address dhcp client-id [ethernet 0/<port number> | HH:HH:HH:HH:HH:HH:HH]
When you configure the client identifier, you can also configure a hostname,
as explained in the next section.
Configuring a Hostname. The Secure Router OS uses the hostname con-
figured for the router as the Frame Relay subinterface’s default DHCP client
hostname. If you want to override this hostname when you enable the DHCP
client, enter the following command:
Syntax: ip address dhcp hostname <word>
For example, you might want to specify that the hostname is RouterB. In this
case, you would enter:
ProCurve(config-fr 1.1)# ip address dhcp hostname RouterB
When you specify the hostname, you can also configure a client identifier at
the same time, as shown below.
ProCurve(config-fr 1.1)# ip address dhcp client-id ethernet 0/1 hostname RouterB
If you enter this command, the DHCP client will use the MAC address of the
Ethernet 0/1 interface as its client identifier, and it will use the hostname
RouterB.
Alternatively, you can specify the hostname and configure the client to ignore
the settings received from the DHCP server. These commands are described
in the following sections.
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