Chapter 11 Filter configuration
139
Nortel Business Secure Router 252 Configuration — Advanced
Configuring a Filter Rule
To configure a filter rule, type its number in
Menu 21.1.1 - Filter Rules
Summary
and press
[ENTER]
to open menu 21.1.1.1 for the rule.
To speed up filtering, all rules in a filter set must be of the same class, for
example, protocol filters or generic filters. The class of a filter set is determined
by the first rule that you create. When applying the filter sets to a port, separate
menu fields are provided for protocol and device filter sets. If you include a
protocol filter set in a device filter field or vice versa, the Business Secure Router
warns you and prevents you from saving.
Configuring a TCP/IP Filter Rule
This section shows you how to configure a TCP/IP filter rule. Using TCP/IP rules,
you can base the rule on the fields in the IP and the upper layer protocol, for
example, UDP and TCP headers.
To configure TCP/IP rules, select
TCP/IP Filter Rule
from the
Filter Type
field
and press
[ENTER]
to open
Menu 21.1.1.1 - TCP/IP Filter Rule
, as shown in
Figure 63
.
Summary of Contents for 252
Page 14: ...14 Contents NN47923 501 ...
Page 20: ...20 Figures NN47923 501 ...
Page 24: ...24 Tables NN47923 501 ...
Page 30: ...30 Preface NN47923 501 ...
Page 42: ...42 Chapter 1 Getting to know your Nortel Business Secure Router 252 NN47923 501 ...
Page 48: ...48 Chapter 2 Introducing the SMT NN47923 501 SMT menus at a glance Figure 6 SMT overview ...
Page 72: ...72 Chapter 3 WAN and Dial Backup Setup NN47923 501 ...
Page 80: ...80 Chapter 4 LAN setup NN47923 501 ...
Page 84: ...84 Chapter 5 Internet access NN47923 501 ...
Page 98: ...98 Chapter 6 Remote Node setup NN47923 501 ...
Page 102: ...102 Chapter 7 IP Static Route Setup NN47923 501 ...
Page 130: ...130 Chapter 9 Network Address Translation NAT NN47923 501 ...
Page 156: ...156 Chapter 12 SNMP Configuration NN47923 501 ...
Page 178: ...178 Chapter 14 System information and diagnosis NN47923 501 ...
Page 198: ...198 Chapter 15 Firmware and configuration file maintenance NN47923 501 ...
Page 212: ...212 Chapter 17 Remote Management NN47923 501 ...
Page 232: ...232 Appendix B Triangle Route NN47923 501 ...
Page 252: ...252 Appendix D PPPoE NN47923 501 ...
Page 256: ...256 Appendix E Hardware specifications NN47923 501 ...
Page 266: ...266 Appendix F IP subnetting NN47923 501 ...
Page 308: ...308 Appendix H NetBIOS filter commands NN47923 501 ...
Page 332: ...332 Appendix K Brute force password guessing protection NN47923 501 ...