Security; Security Overview; Network Access Security; Ip Access Lists (Acls) - Extreme Networks ExtremeWare XOS Guide Manual

9

Security

This chapter describes the following topics:
• Security Overview on page 113
• Network Access Security on page 113
— IP Access Lists (ACLs) on page 113
• Switch Protection on page 119
— Policies on page 120
• Management Access Security on page 129
— Authenticating Users Using RADIUS or TACACS+ on page 129

Security Overview

Extreme Networks products incorporate a number of features designed to enhance the security of your
network. No one feature can insure security, but by using a number of features in concert, you can
substantially improve the security of your network. The features described in this chapter are part of an
overall approach to network security

Network Access Security

Network access security features control devices accessing your network. In this category are the
following features:

• IP Access Lists (ACLs)

IP Access Lists (ACLs)
IP access lists consist of IP access rules and are used to perform packet filtering and forwarding
decisions on incoming traffic. Each packet arriving on an ingress port is compared to the access list
applied to that port and is either permitted or denied. Permitted and denied (dropped) packets can also
be counted. Using access lists has no impact on switch performance.
ExtremeWare XOS 10.1 Concepts Guide 113