User`s guide

X.509 Certificates .............................................................................................. 469

FIREWALL SCRIPTS ............................................................................................ 471

Introduction ...................................................................................................... 471

Firewall Script Syntax ......................................................................................... 471

Specifying IP Addresses and Ranges ..................................................................... 476

Address/Port Translation ..................................................................................... 478

Filtering on Port Numbers .................................................................................... 478

Filtering on TCP Flags ......................................................................................... 479

Filtering on ICMP Codes ...................................................................................... 480

Stateful Inspection ............................................................................................. 481

The FWLOG.TXT File ........................................................................................... 486

Debugging a Firewall .......................................................................................... 490

REMOTE MANAGEMENT ...................................................................................... 491

Using V.120 ...................................................................................................... 491

Using Telnet ...................................................................................................... 491

Using FTP ......................................................................................................... 492

Using X.25 ........................................................................................................ 493

AT COMMANDS ................................................................................................... 494

D Dial ............................................................................................................... 494

H Hang-up ........................................................................................................ 494

Z Reset ............................................................................................................ 494

&C DCD Control ................................................................................................. 495

&F Load Factory Settings .................................................................................... 495

&R CTS Control .................................................................................................. 495

&V View Profiles ................................................................................................. 495

&W Write SREGS.DAT ......................................................................................... 495

&Y Set Default Profile ......................................................................................... 496

&Z Store Phone Number ..................................................................................... 496

\AT Ignore Invalid AT Commands ......................................................................... 497

\LS Lock Speed .................................................................................................. 497

\PORT Set Active Port ......................................................................................... 497

\smib Commands ............................................................................................... 498

“S” REGISTERS ................................................................................................... 505

S0 V.120 Answer Enabled ................................................................................... 505

S1 Ring count .................................................................................................... 506

S2 Escape Character .......................................................................................... 506