Chapter 9 Firewall
SBG5500 Series User’s Guide
140
Certification Authority
A Certification Authority (CA) issues certificates and guarantees the identity of each certificate owner.
There are commercial certification authorities like CyberTrust or VeriSign and government certification
authorities. The certification authority uses its private key to sign certificates. Anyone can then use the
certification authority's public key to verify the certificates. You can use the SBG to generate
certification requests that contain identifying information and public keys and then send the
certification requests to a certification authority.
AAA Servers Supported by the SBG
The following lists the types of authentication server the SBG supports.
• Local user database
The SBG uses the built-in local user database to authenticate administrative users logging into the SBG’s
Web Configurator or network access users logging into the network through the SBG.
• RADIUS
RADIUS (Remote Authentication Dial-In User Service) authentication is a popular protocol used to
authenticate users by means of an external or built-in RADIUS server. RADIUS authentication allows you
to validate a large number of users from a central location.
9.2 The Firewall Overview Screen
Use this screen to enable the firewall on the SBG. Click
Configuration > Firewall / Security > Firewall
Overview
to display the
General
screen.
Figure 109
Configuration > Firewall / Security > Firewall Overview
Click the check box to activate the firewall feature on the SBG, then click
Apply
to save your changes.
You can also use the
Firewall Flow
to go through the SBG’s firewall features.
Summary of Contents for SBG5500-A
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