36 CHAPTER 2: INSTALLING THE W EBCACHENetwork Address Translation (NAT) does not apply to the DMZ port of theFirewall so you will need to configure the Webcache with a registered IPaddress.b Set the Webcache to Proxy Mode. This setting can be made from theGetting Started Wizard or by selecting Device View > System >Caching > Set Caching Mode from the Web interface.c In the Port Number field enter the number 8080 (this is the defaultvalue).d Do not enable Web Site Blocking on the Webcache as the Firewall hasmore advanced filtering abilities and is able to use the 3Com Web SiteFilter (3C16111) if installed.2 Install the Firewall according to the Superstack 3 Firewall User Guide(DUA1611-0AAA0x) taking into account any safety information.a On the Web interface of the Firewall click Advanced then Proxy Relay.b In the Proxy Web Server Address field enter the IP address of yourWebcache.c In the Proxy Web Server Port field enter the number 8080.d Click Update to save your changes.3 No configuration is necessary on the client machines. The Firewall willintercept any HTTP requests for external URLs and will forward the trafficto the Webcache.Setting Up theWebcache forManagementYou can quickly set up the Webcache for management in two ways: Setting Up Using the Web Interface — Connect a managementworkstation to the Webcache over an IP test network or directly via across-over cable. For more information, see “Setting Up Using theWeb Interface” on page 38.or Setting Up Using the Command Line Interface — Connect amanagement workstation to the Webcache over an IP test network orconnect a terminal or terminal emulator to the console port of theWebcache directly, or through a modem. For more information, see“Setting Up Using the Command Line Interface” on page 40.CAUTION: You must configure the basic settings of the Webcache bycompleting the Getting Started wizard before you introduce the
