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3 - INTRODUCTION TO FILTERING 57
MAC Address Filtering 57
Pattern Filtering 58
Popular Filters 61
Bridge 61
IP & Related Traffic 61
Novell IPX Frames 61
NetBIOS &NetBEUI (Microsoft Windows) 61
Banyan 62
IP router 62
NetBIOS over TCP 62
Other interesting TCP Ports 62
APPENDIX A MENU TREES 63
APPENDIX B OCTET LOCATIONS ON ETHERNET
FRAMES 67
Octet Locations on a Bridged TCP/IP Frame 68
Octet Locations on a Bridged Novell Netware Frame 68
ETHERNET Type Codes 69
Octet Locations on an IP Routed TCP/IP Frame 70
Octet Locations on an IPX Routed Novell Netware Frame 70
Octet Locations on a Bridged XNS Frame 71
APPENDIX C SERVICING INFORMATION 73
Opening the case 73
Identifying the Internal Components 74
Sanity Timer 76
Force ZMODEM Software Load 76
To Clear a “Lost” Password 76
Connecting to the Console Connector 77
WAN Interface Connection 78
Pinout Information 78
V.35 Module: 78
CSU/DSU Module: 78
T1/E1 Module: 79
UNIVERSAL WAN Module: 80
V.35 Link Pinouts 81
RS232C / V.24 Link Pinouts 83
RS530 / RS422 Link Pinouts 84
V.11 / X.21 Link Pinouts 85