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2-40 Reference Guide
How the default profile works for a switched
circuit
The Default Profile works like a guard booth at the gate to your
network: it scrutinizes incoming calls. Like the guard booth, the
default profile allows calls based on a set of criteria that you define.
The main criterion used to check calls is whether they match one of
the connection profiles already defined. If PAP or CHAP authentication
is being used, the default profile checks that the incoming call’s name
and password/secret match the receive name and password/secret
of a connection profile. If PAP or CHAP is not being used, an incoming
call 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 an incoming call is matched to an existing connection profile, the
call is accepted. All of that connection profile’s parameters, except for
authentication, are adopted for the call.
You could set up the default profile to allow calls in even if they fail to
match a connection profile. Continuing the guard booth analogy, this
would be like removing the guards or having them wave all calls in,
regardless of their source.
If an incoming call is not required to match a connection profile, and
fails to do so, it is accepted as a standard IP connection. Accepted,
unmatched calls adopt the call parameter values set in the default
profile.
To determine how which call parameter values unmatched calls will
adopt, customize the default profile parameters in the Default Profile
screen.
Customizing the default profile
You can customize the Netopia Router’s default profile in the Default
Profile screen.