Patton electronic SmartNode 4110 Series manual PPP Dial-up over Isdn, PPP Dialer

SmartWare Software Configuration Guide 30 • PPP configuration

port e1t1 0 0 port-type e1 framing crc4 encapsulation hdlc

hdlc encapsulation ppp

bind interface myPPP router

port e1t1 0 0 no shutdown

PPP Dial-up over ISDN

The following modules in this section must be configured in order to use the PPP dial-up over ISDN feature:

•PPP Dialer (see page 331)

•Dial-up (see page 337)

•IP Link Supervision (see page 338)

PPP Dialer

The PPP Dialer is one of the modules you have to configure in order to use the PPP dial-up over ISDN fea- ture. Also, consider the dial-upcommand (page 337) and the check-connectivitycommand (page 338) on the IP interface.

The dialer is responsible for establishing and tearing down call-signaling connections to the remote-access server. The dialer is a virtual interface of the circuit-switching (CS) context. Thus the dialer belongs to the domain of switch-circuit connectivity even if the established link finally runs the IP protocol.

To establish a connection, the dialer must be triggered by an external source, for example, a spoofing IP inter- face (an IP interface configured for dial-up). Whether this trigger is fired on the first packet sent over that IP interface or if the primary link to the destination goes down, is configured using the dial-upcommand on bound IP interface.

When the dialer receives the trigger event it tries to establish one or more connections to the configured desti- nation. You can specify a list of destinations to be tried. Each destination configuration contains all informa- tion needed to dial and log in to a certain remote-access server (i.e. remote party number, login credentials,

PPPparameters, etc.). However some of the parameters are indirectly configured using a PPP subscriber con- figuration entity.

The following configuration parameters are the same for all destinations:

•Recovery Strategy: If and when a retry is started after a failed dial attempt.

•Destinations: A list of destinations, each of which contains the parameters below. The following configuration parameters can be configured for each destination separately:

•Local and Remote Party Number: Calling- and Called-E.164 number for the signaling connection.

•Call Route: A link to a call-router element, for example an ISDN interface. This route defines over which interface the dial-up call is placed. Instead of routing a call directly to an ISDN interface, you can also route the call to a hunt-group service that hunts for a free B-channel over multiple BRI interfaces.

PPP Dial-up over ISDN 331