Microsoft 2004 User Manual
ISA Server 2004 Configuration Guide 62
Introduction
In this ISA Server 2004 Configuration Guide document we will install the ISA Server 2004
software onto the Windows Server 2003 computer we installed and configured in Chapter 1.
Installing ISA Server 2004 is straightforward as there are only a few decisions that need to be
made during installation.
software onto the Windows Server 2003 computer we installed and configured in Chapter 1.
Installing ISA Server 2004 is straightforward as there are only a few decisions that need to be
made during installation.
The most important configuration made during installation is the Internal network IP address
range(s). Unlike ISA Server 2000, ISA Server 2004 does not use a Local Address Table
(LAT) to define trusted and untrusted networks. Instead, the ISA Server 2004 firewall asks for
the IP addresses defining a network entity known as the Internal network. The internal
network contains important network servers and services such as Active Directory domain
controllers, DNS, WINS, RADIUS, DHCP, firewall management stations, and others. These
are services the ISA Server 2004 firewall needs to communicate with immediately after
installation is complete.
range(s). Unlike ISA Server 2000, ISA Server 2004 does not use a Local Address Table
(LAT) to define trusted and untrusted networks. Instead, the ISA Server 2004 firewall asks for
the IP addresses defining a network entity known as the Internal network. The internal
network contains important network servers and services such as Active Directory domain
controllers, DNS, WINS, RADIUS, DHCP, firewall management stations, and others. These
are services the ISA Server 2004 firewall needs to communicate with immediately after
installation is complete.
Communications between the Internal network and the ISA Server 2004 firewall are controlled
by the firewall’s System Policy. The System Policy is a collection of pre-defined Access Rules
that determine the type of traffic allowed inbound and outbound to and from the firewall
immediately after installation. The System Policy is configurable, which enables you can
tighten or loosen the default System Policy Access Rules.
by the firewall’s System Policy. The System Policy is a collection of pre-defined Access Rules
that determine the type of traffic allowed inbound and outbound to and from the firewall
immediately after installation. The System Policy is configurable, which enables you can
tighten or loosen the default System Policy Access Rules.
In the document we will discuss the following procedures:
• Installing ISA Server 2004 on Windows Server 2003
• Reviewing the Default System Policy
• Reviewing the Default System Policy