Configuring Remote Access for AN and Passport ARN Routers
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Table4-2. ifconfig Command Options for a Serial Interface
Option Description
-d Resets the router’s IP interface options to the default values. This
option tries four WAN configurations in the following order, until it finds
the correct type for the router’s connection to the network:
1. Nortel Networks HDLC encapsulation (also called
Nortel Networks Standard PPP) with external clocking
2. Frame Relay Annex D
3. Frame Relay LMI
4. Frame Relay Annex A
-fr Configures the router’s serial port as a frame relay connection. With
this option, use one of the following options to specify a DLCMI
option: -annexd, -annexa, or -lmi.
-annexd
-annexa
-lmi
When one of these options is used with the -fr option, it specifies a
DLCMI option. Use the same option as the network to which the
router’s Frame Relay interface is connected. The default option for
Frame Relay is -annexd.
-int_clk Sets the serial port to internal clocking at 1.25 MB/s. If you do not
specify this option, the router defaults to external clocking.
<interface>
Specifies the IP connector you are configuring. Use the format
com

<port_no.>

.

<IP_address>

Specifies the IP address of the interface you set with
<interface>
.
Provide this address in dotted-decimal notation.

<subnet_mask>

Specifies the IP subnet mask of the interface you set with
<interface>
.
Provide this address in dotted-decimal notation.

<next_hop_

address>

Specifies the IP address of the next-hop router. Provide this address
in dotted-decimal notation. Specify this address only if there are
intermediate routers between the AN/ANH or ARN router and the
BootP server.