This document describes how to configure and monitor WAN interfaces in the router. It includes the following topics:
Configuring and Monitoring WAN Interfaces
Displaying the Circuit Prompts
Circuit Commands
Configuring and Monitoring WAN Interfaces
To configure and monitor WAN interfaces, use the Circuit Config <NET-#> and the Circuit <NET-#> prompts. These prompts include the number of the interface that you are currently configuring or monitoring.
The circuit prompts take you to the configuration or monitoring process for the data-link protocol or services running on the interface. For example, you can go to the PPP prompt or one of the Frame Relay prompts.
In addition, you can set certain circuit properties at the circuit configuration prompt. Table 1 shows these properties.
Table 1 Circuit Properties
To . . .
Use this
command . . .
Prevent this interface from accepting incoming calls.
disable inbound
Prevent this interface from placing calls.
disable outbound
Prevent the router from continuing to make calls on dial-up interfaces after a connection attempt fails.
disable redial
Let this interface accept calls from any router that passes PPP authentication. (This is disabled by default.)
enable any-inbound
Allow this interface to accept incoming calls. (This is the default behavior.)
enable inbound
Allow this interface to place calls. (This is the default.)
enable outbound
Cause the router to continue to make calls on dial-up interfaces after a connection attempt fails.
enable redial
Create a list of up to eight remote routers from which this interface accepts calls.
set access-list
Assign a chat script to use with this interface.
set chat-script
Assign the remote router to call when this interface places an outbound call. If this router passes PPP authentication and if inbound calls are enabled, the local router always accepts calls from this router.
set destination
Sets the interface to dial-on-demand or dedicated. By default, interfaces are set to dial-on-demand.
set idle
Displaying the Circuit Prompts
To display the Circuit Config <NET-#> prompt
Config> prompt to display a list of interfaces.
Config>network 1
Circuit Configuration
Circuit Config <NET-1>
Circuit <NET-#> promptMonitor> prompt to display a list of interfaces.
Monitor>network 1
Circuit <NET-1>
Not all parameters apply to all devices or to all interfaces. Press Space twice after you type a command to display the available parameters for each command. Enter help for information about using the command line interface.
[C] means the command is available at the Circuit Config <NET-#> prompt.
[M] means the command is available at the Circuit <NET-#> prompt.
| Command | Function |
|---|---|
| BRI [C] [M] | Displays the ISDN BRI configuration or monitoring prompt. |
| BRS [C] [M] | Displays the Bandwidth Reservation System configuration or monitoring prompt. |
| DDS [C] [M] | Displays the DDS configuration or monitoring prompt. |
| Dial [C] [M] | Displays the Serial Interface Dialer (DIAL) configuration or monitoring prompt. |
| Disable [C] | Disables the interface from accepting inbound calls and making outbound calls, and disables redialing on dial-up interfaces. |
| Enable [C] | Allows the interface to accept inbound calls and make outbound calls, and enables redialing on dial-up interfaces. |
| Exit [C] [M] | Returns to the previous prompt. |
| FRLANE [C] [M] | Displays the Frame Relay LAN Emulation configuration or monitoring prompt. |
| FRMGR [C] [M] | Displays the Frame Relay Manager configuration or monitoring prompt. |
| FRVC [M] | Displays the Frame Relay Virtual Circuit monitoring prompt. |
| List [C] [M] | Displays the circuit configuration. |
| PPP [C] [M] | Displays the PPP configuration or monitoring prompt. |
| PPPoE [C] [M] | Displays the PPPoE configuration or monitoring prompt. |
| Set [C] | Sets the access list, the name of the destination, the chat script to use, and the idle timeout. |
| SL [C] | Displays the Serial Line configuration prompt. |
BRI [C] [M]
Displays the ISDN Basic Rate Interface (BRI) configuration or monitoring prompt. See Using the ISDN Interface for information on the commands available at this prompt.
bri
Basic Rate ISDN user configuration
BRI Config <NET-1>
brs
Bandwidth Reservation User Configuration
BRS Config <NET-1>
dds
DDS user configuration
DDS Config <NET-1>
Config> prompt.
See Using the Serial Interface Dialer for information on the commands available at this prompt.
Example:dial
Serial Interface Dialer Configuration
DIAL Config <WAN>
inbound
Configures the interface to not accept inbound calls.
outbound
Configures the interface to not make outbound calls.
Normally, the interface places an outbound call either immediately upon restarting (if dial-on-demand is off) or when the interface receives data to transmit.
redial
Lets you control whether or not the router continues to make calls on dial-up interfaces after unsuccessful connection attempts.
Redial takes affect only on dial-up interfaces, which have the idle timer set to a non-zero value. On dial-up interfaces, the router attempts a connection only when traffic is present. If you have redial disabled and the connection attempt fails, the router marks the interface as Up so that IP routes are not lost. The router does not attempt to make another connection until there is traffic present on the interface.
The default setting for redial is enabled.
Enable [C]
Enables calls to and/or from this interface. Use the options that this command provides to configure some interfaces to place calls and other interfaces to accept calls.
Note: If you have enabled PPP authentication, this option directs the interface to accept calls only from all authenticated callers. (See Using PPP Interfaces for information on PPP authentication.)
outbound
Configures the interface to make outbound calls. You must enable outbound calls when dial-on-demand is enabled.
This is the default behavior of the interface. By default, the interface places an outbound call either immediately upon restarting (if dial-on-demand is off) or when the interface receives data to send.
redial
Lets you control whether or not the router continues to make calls after unsuccessful connection attempts.
Redial takes affect only on dial-up interfaces, which have the idle timer set to a non-zero value. On dial-up interfaces, the router attempts a connection only when traffic is present. If you have redial enabled and the connection attempt fails, the router marks the interface as Testing and continues to try to make the connection.
The default setting for redial is enabled.
Exit [C] [M]
Returns to the previous prompt.
exit
Config>
Config> prompt.
See Using Frame Relay for information on the commands available at this prompt.
Example:frlane
Frame Relay LAN Emulation User Configuration
FRLANE Config <NET-1>
See Using Frame Relay for information on the commands available at this prompt.
Example:frmgr
Frame Relay Manager Configuration
FRMGR Config <WAN>
See FRVC Commands for information on the commands available at this prompt.
Example:frvc
Frame Relay Virtual Circuit Console
FRVC <NET-3>
list
Destination Name: boise
Chat Script Name: boisescript
Outbound calls: Allowed
Inbound calls: Allowed
Idle Time: 120 seconds
Redial: Enabled
Access List: boise (destination), helena, duluth
ppp
Point-to-Point user configuration
PPP Config <NET-1>
pppoe
PPP over Ethernet user configuration
PPPoE Config <NET-1>
Accepts up to eight names of remote routers. To change this list, you must re-enter the entire list.
For DIAL interfaces, address names must match addresses you added using the add address command at the DIAL Config <WAN> prompt.
For ISDN interfaces, address names must match addresses you added using the add address command at the BRI Config <NET-1> prompt.
Configure an access list by following the syntax in either of the following examples.
Enter 1st name: []? boston
Enter 2nd name: []? new york
Enter 3rd name: []? philadelphia
set access-list boise helena
Enter 3rd name: []?
DIAL
Config <WAN> prompt. See Creating Chat Scripts
for steps to configure a chat script.
To turn off use of a chat script that you set using this command, enter set chat-script off.
destination
Sets the name of the destination to call when the interface places an outbound call. The interface also accepts inbound calls from this remote router.
For DIAL interfaces, this address name must match an address you added using add address at the DIAL Config <WAN> prompt.
For ISDN interfaces, this address name must match an address you added using add address at the BRI Config <NET-1> prompt.
set destination
Assign destination address name []? boise
Setting the idle timer to 0 (zero) configures the interface as a dedicated circuit, and the interface remains connected regardless of the amount of traffic over the interface.
Setting the idle timer to nonzero configures the interface as a dial-on-demand circuit, and the router does not bring up the interface when the router restarts. The interface remains disconnected until it receives traffic. The interface automatically disconnects after the specified time (in seconds) has elapsed with no data traffic passing over the interface.
Idle timer (seconds, 0 means always active) [120]? 60
See Configuring Serial Devices for information on the commands available at this prompt.
Example:sl
Serial Line Configuration
Serial Config <WAN>