How To Configure Wccp - Comtech EF Data FX series 1005 Administrator's Manual

Comtech EF Data / Stampede

3.3.4 How to Configure WCCP

Overview
The Web Cache Communication Protocol (WCCP) is a Cisco-developed content-routing technology which
allows you to integrate cache engines into your network infrastructure.
WCCP Configuration Considerations
There are two basic configurations that will be used when installing an appliance.
1) Web-cache or transparent proxy interception.
In this mode of interception the FX will have the same characteristics as a standard proxy. The
Cisco device will redirect traffic to the appliance, which will then make request on behalf of the
user using the appliance's IP address as the source.
NOTE: Only one service group is required, service group zero. On the Cisco device this will
be configured as "web-cache".
2) Dynamic service groups or source IP address preservation
In this mode of interception the FX will the same characteristics as an in-line device. The Cisco
device will redirect traffic to the appliance, which will then make request on behalf of the user
using the user's address as the source (spoofing).
NOTE: This configuration requires two service groups, inbound and outbound.
WCCP Cisco Device configuration
1) We will use either eth0 or eth1 when installing in a WCCP pattern.
Log into the Cisco device and identify the inbound and outbound interfaces.
These must correspond to in-path interfaces.
In the global configuration enable WCCP with the appropriate commands.
If configuring as a web-cache we will enter the following: "ip wccp web-cache"
2) For a WCCP with source IP address preservation setup.
We will enter the following commands: "ip wccp 99", "ip wccp 96"
By default our appliances use service groups 99 for outbound traffic and 96 for
inbound traffic.
3) At the interface level if we are configuring a web-cache setup.
We will enter the following command:
For all inbound interfaces: "ip wccp web-cache redirect in"
4) At the interface level if we are configuring a source IP address preservation setup.
We will enter the following commands:
For all inbound interfaces: "ip wccp 99 redirect in"
For all outbound interfaces: "ip wccp 96 redirect in"
It is possible to control which traffic is redirected by subnet using the redirect-list
option
FX Series Administration Guide - Version 6.2.2
Chapter: FX Series Configuration
Section: Traffic Interface Settings
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MN-FXSERIESADM6 Rev 6