Avocent Access Router Cyclades-PR2000 - Manual (Page 96)

96 Chapter 12 - Filters and Rules
Cyclades-PR2000
CHAPTER 12 RULES AND FILTERS
There are four basic types of rules:
1 IP filter rules,
2 Radius rules (actually a combination of previously defined IP filter rules),
3 traffic control rules, and
4 transparent bridge rules (similar to IP filter rules, but for applications that use a transparent bridge).
IP filter rules and traffic control rules will be covered in detail in this chapter. See section 4.7 of the CyROS
Reference Guide for more information about all four types of rules.
As an introduction, the Rules List Menu Tree is presented in Figure 12.1. First, a rule list is created and
named. Second, rules are added to the list and defined.
Configuration of IP Filters
IP Filter rules are a very important part of a network’s firewall. They permit packets into or out of the network
depending on the source and destination IP addresses, the source and destination ports, the protocol used,
and the ACK bit for TCP packets. The Syslog can be used to monitor the packets that meet the rules applied in
this menu.