User`s guide

Configuring WAN Connections
How calls are initiated
1-4 Preliminary January 30, 1998 Pipeline User’s Guide
To make channels available for a nailed connection, you have to designate them
for nailed usage by assigning them to a group number.
Note:
Make sure the group numbers are unique across all WAN interfaces.
The group numbers for the Pipeline WAN interfaces are as follows:
• If you set the Chan Usage parameter to Leased/Switch, the Group number
for the first B channel is 1 (this value cannot be changed).
• If you set the Chan Usage parameter to Switch/Leased, the Group number
for the second B channel is 2 (this value cannot be changed).
Assign group numbers to channels as follows:
• For PPP encapsulated connections to other routers or bridges, set the group
number specifying a value for the Ethernet > Connection > any profile >
Telco > Group parameter.
• For Frame Relay encapsulated connections, set the group number by
specifying a value for the Ethernet > Frame Relay > profile > Nailed Grp
parameter.
How calls are initiated
When configured to bridge, the Pipeline initiates a bridged connection across the
Wide Area Network (that is, it calls out) whenever it receives a broadcast packet
or a packet whose destination is not on the local LAN. When configured to route,
the Pipeline initiates a connection when it has a route to the destination. But the
Pipeline does not attempt to route every packet unless it is configured as the
default gateway.
You can manually dial a connection from a connection profile by pressing
Control-D to invoke the DO menu, then selecting dial. (For further discussion of
manual dialing, see the Reference Guide chapter on using the DO commands.)
For more information on how the Pipeline initiates calls, see:
• Chapter 2, “Configuring IP Routing.”
• Chapter 4, “Configuring IPX Routing.”
• Chapter 5, “Configuring the Pipeline as a Bridge.”