Microsoft KB Archive/186918

= Tips for Installing Proxy Server 2.0 =

Article ID: 186918

Article Last Modified on 12/6/2000

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APPLIES TO


 * Microsoft Proxy Server 2.0 Standard Edition

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This article was previously published under Q186918



SUMMARY
To correctly set up Proxy Server 2.0, follow the steps listed in the MORE INFORMATION section below.



MORE INFORMATION

 * 1) Install two network interfaces.

NOTE: It is recommended that Proxy Server have at least two network interfaces: one "internal" and one "external." The internal interface must be a network interface card (NIC). The external network interface can either be another NIC, or a standard, ISDN, or cable modem. If the Proxy Server is only configured with just one network interface, it can only be used as a "caching only" server.
 * 1) Set up the external interface with the proper IP address information.

NOTE: The external network interface must have the proper IP address information. This will depend on the type of external network interface used. If the external network interface is a NIC, it must be configured with both a valid Internet IP address and a valid IP address for an Internet DNS server. If the external network interface is a modem, a Dial-Up Network phonebook entry must be configured to connect to your ISP. The phonebook entry must contain the proper DNS server information.
 * 1) Set up the internal NIC with a valid internal IP address and its proper subnet mask, but do not specify a default gateway.

CAUTION: A route to your internal network can be created if a default gateway is defined.
 * 1) Disable IP forwarding.

CAUTION: To provide a secure network environment, IP packet routing must be controlled. If IP forwarding is enabled, all packets will automatically be forwarded across both internal and external networks.
 * 1) Build the Local Address Table (LAT) so that it uses the IP range of the internal NIC.

NOTE: Only include the internal IP addresses in the LAT. This should also include the internal IP address on the Proxy Server. Proxy Server uses the LAT to determine which requests to answer. In addition, Proxy Server uses the LAT to determine which interface to use when sending requests out to the external network. If all IP addresses on the Proxy Server are included in the LAT, Proxy Server will only be useful as a caching server. If none of the IP addresses on the Proxy Server are included in the LAT, no requests will be answered by the Proxy Server.

For more information, see the following topics sections in the Microsoft Proxy Server online documentation:

InstallationBefore You InstallInstalling Server Software (This topic includes a description of the LAT, which defines the internal network address space.)

Keywords: kbhowto kbfaq KB186918

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