User Manual
Contents
iv
7: PPP........................................................................................................................... 7-1
7.1 LCP .............................................................................................................................................7-1
7.1.1 Packet Sizes ................................................................................................................7-1
7.1.2 Header Compression...................................................................................................7-1
7.1.3 Character Escaping .....................................................................................................7-2
7.1.4 PPP Authentication.....................................................................................................7-2
7.1.5 CBCP ..........................................................................................................................7-3
7.2 NCP.............................................................................................................................................7-3
7.3 Starting PPP ................................................................................................................................7-3
7.3.1 User-Initiated PPP.......................................................................................................7-4
7.3.2 Automatic Detection of PPP.......................................................................................7-4
7.3.3 Dedicated PPP.............................................................................................................7-4
7.4 Multilink PPP..............................................................................................................................7-4
7.4.1 Configuring the Calling SCS ......................................................................................7-4
7.4.2 Configuring the Receiving SCS..................................................................................7-6
7.5 Restoring Default PPP Settings ..................................................................................................7-7
7.6 Troubleshooting ..........................................................................................................................7-7
8: Ports......................................................................................................................... 8-1
8.1 Using Port Commands ................................................................................................................8-1
8.2 Setting Port Access .....................................................................................................................8-1
8.3 Starting a Port .............................................................................................................................8-1
8.3.1 Waiting for Character Input........................................................................................8-2
8.3.2 Starting Automatically................................................................................................8-2
8.4 Port Modes..................................................................................................................................8-3
8.4.1 Character Mode...........................................................................................................8-3
8.4.2 PPP Mode ...................................................................................................................8-3
8.4.3 SLIP Mode..................................................................................................................8-3
8.5 Automatic Protocol Detection.....................................................................................................8-4
8.6 Port-Specific Session Configuration...........................................................................................8-4
8.6.1 Multiple Sessions........................................................................................................8-5
8.6.2 Switching Between Sessions ......................................................................................8-5
8.6.3 Exiting Sessions..........................................................................................................8-5
8.6.4 Monitoring Session Activity.......................................................................................8-6
8.6.5 Setting Session Characteristics ...................................................................................8-6
8.7 Preferred/Dedicated Protocols & Hosts......................................................................................8-7
8.7.1 Dedicated Protocols ....................................................................................................8-7
8.7.2 Preferred/Dedicated Hosts ..........................................................................................8-8
8.7.3 Saving Autostart Characters .......................................................................................8-8
8.8 Port Restrictions..........................................................................................................................8-8
8.8.1 Locking a Port.............................................................................................................8-9
8.8.2 Enabling Signal Check................................................................................................8-9
8.8.3 Username/Password Protection ..................................................................................8-9
8.8.4 Automatic Logouts ...................................................................................................8-10
8.8.5 Restricting Commands..............................................................................................8-11
8.8.6 Receipt of Broadcast Messages ................................................................................8-11
8.8.7 Dialback....................................................................................................................8-12
8.8.8 Enabling Menu Mode ...............................................................................................8-12
8.9 Serial Port Configuration ..........................................................................................................8-12
8.9.1 Naming a Port ...........................................................................................................8-12
8.9.2 Specifying a Username .............................................................................................8-13