"Filter name?"

    If you chose to configure an X.25 Dynamic Assigned (DA)
    circuit or an X.25 Static Incoming (IN) circuit, this prompt
    is displayed. Specify the simple-name of an X25 Access filter.
    You may accept the default or you may enter your own name (for
    example, X25-IN-0).

    Static incoming and dynamically assigned X.25 circuits use an X25
    Access filter to receive inbound network connections.

    For a static incoming circuit the X25 Access filter must specify
    inbound DTE class, sending DTE address, call data value and call
    data mask.

    For a dynamic assigned circuit the X25 Access filter must specify
    inbound DTE class, call data value and call data mask.

    X25 Access filters are configured using the X.25
    configuration program.