
Automatic Proxy/Web Cache Forwarding 113
Figure 50 Deploying the Firewall and Webcache together
1
Install the Webcache as described in the Superstack 3 Webcache User
Guide (DUA1611-5AAA0x) taking into account any safety information.
a
Install the Webcache on a Hub or Switch connected to the DMZ port
of the Firewall. Use the LAN port of the Webcache for this connection.
Network Address Translation (NAT) does not apply to the DMZ port of the
Firewall so you will need to configure the Webcache with a registered IP
address.
b
Set the Webcache to Proxy Mode. This setting can be made from the
Getting 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
(thisisthedefault
value).
d
Do not configure Web Site Blocking on the Webcache as the Firewall
has more advanced filtering abilities and is able to use the 3Com Web
Site Filter (3C16111).
2
Install the Firewall according to the Superstack 3 Firewall User Guide (this
guide) 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 your
Webcache.
R
F
S
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LAN
Infrastructure
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Key:
Client PC
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SuperStack 3
irewallF
10/100 Mbps
witchS
Router
Superstack 3
Web achec
DUA1611-0AAA02.book Page 113 Thursday, August 2, 2001 4:01 PM
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