
Contents
Configure Remote Site Profiles ............................................................................38
Configure Remote Site Profiles for ISDN PPP........................................................ 39
Configure Remote Site Profile for Frame Relay ....................................................... 41
Configure Remote Site Profiles for Leased Line PPP ............................................. 44
Configure Remote Site Profiles for Frame Relay with ISDN backup................... 46
Configure Remote Site Profiles for PPPoE............................................................... 47
Advanced Features .................................................................................................50
Configure Dynamic Host Configuration Protocol................................................... 50
Network Address Translation and Port Translation................................................ 52
Security.............................................................................................................................54
Configure PPP Security........................................................................................................... 54
Configure Firewall....................................................................................................................56
Network Address Translation................................................................................................59
Filters.......................................................................................................................................... 59
Compression ................................................................................................................... 59
Bandwidth On Demand................................................................................................ 60
QOS - Priority Queuing................................................................................................ 61
Simple Network Time Protocol (SNTP).................................................................... 63
3 INTRODUCTION TO FILTERING 65
MAC Address Filtering..........................................................................................65
Pattern Filtering ......................................................................................................66
Popular Filters.........................................................................................................67
Bridge .......................................................................................................................67
IP & Related Traffic....................................................................................................... 67
Novell IPX Frames ........................................................................................................ 67
NetBIOS &NetBEUI (Windows For Workgroups)................................................ 67
Banyan..............................................................................................................................68
IP Router..................................................................................................................68
NetBIOS over TCP ....................................................................................................... 68
Other interesting TCP Ports ........................................................................................ 68
APPENDIX A MENU TREES 69
APPENDIX B OCTET LOCATIONS ON ETHERNET FRAMES 72
Octet Locations on a Bridged TCP/IP Frame...................................................72
Octet Locations on a Bridged Novell Netware Frame.....................................73
ETHERNET Type Codes ....................................................................................73
Octet Locations on an IP Routed TCP/IP Frame............................................74
Octet Locations on an IPX Routed Novell Netware Frame ...........................74
Octet Locations on a Bridged XNS Frame ........................................................75
APPENDIX C SERVICING INFORMATION 76
Opening the case ....................................................................................................76
Identifying the Internal Components..................................................................77
To Clear a “Lost” Password .................................................................................78
Changing LAN or WAN Interfaces.....................................................................78
Selecting MDI or MDI-X LAN Interface...........................................................78
Installing the ISDN Link Modules.......................................................................79
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