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Configuring ISDN and Leased Line Connections 2-45
How the default profile works for a permanent
circuit
The default profile works like a guard booth at the gate to your
network: it scrutinizes WAN connections. Like the guard booth, the
default profile allows connections based on a set of criteria that you
define.
The main criterion used to check connections is whether they match
one of the connection profiles already defined. A connection is
matched to a connection profile using the remote network’s IP
address (that is, the caller is defined as the destination of a particular
connection profile).
If a connection matches an existing profile, all of the connection
profile parameters are adopted for the call.
When using PPP or Cisco-HDLC datalink encapsulation on a
permanent circuit, you must configure a connection profile. Note, that
you may have already configured this connection profile in Easy Setup.
See the
Getting Started Guide
for information on configuring an Easy
Setup connection profile.
When using Frame Relay datalink encapsulation on a permanent
circuit, you may require that the frame relay DLCIs explicitly match up
to your connection profile, or you may allow your Frame Relay network
to automatically confirm this by using the Default Frame Profile.