Transparent/WCCP Proxy Setup

Figure 15 provides a visual map for the information in this section.

NOTE:  The letters in Figure 15 are referenced in the table that follows. The addresses shown are for illustration purposes only. You will need to substitute actual addresses for your network.

Figure 15

To Do This Notes

Ensure your basic network configuration is complete
  1. See Basic Network Configuration Setup.

Enable WCCP routing on the router
  1. Enable the router for WCCP routing. Follow the router manufactuer's directions.

See A in Figure 15.

A WCCP-capable router can service more than one transparent proxy server.

Set up transparent proxy services on the appliance
  1. In the browser-based tool, click Cache > Transparent Handling > Enable Transparent Client Acceleration (Transparent Proxy L4 Switch Support).
  2. Insert one or more ports. (The default is 80.)
  3. Check the IP addresses you want to service transparent proxy requests. Only check one address for any given network card.
  4. Click Apply.

See B in Figure 15.

When transparent proxy is enabled, it is active for all IP addresses on the appliance, except those addresses configured for origin Web server acceleration services on the same port.

For more information, see Transparent Handling Tab.

Register the appliance with a WCCP version 1 router if the routers on your network use WCCP version 1
  1. After you have enabled transparent proxy services, check Enable WCCP.
  2. Click WCCP V1 Options.
  3. Enter a proxy name and a farm name in their respective fields. (See Notes column for more information.)
  4. In the WCCP Router field, enter the IP address of the WCCP router.
  5. In the WCCP Cache field, enter an appliance IP address configured for transparent proxy service.
  6. Click Apply.

See C in Figure 15.

The Proxy Name and Farm Name fields on the WCCP options form are text strings for your reference. They have no other function.

The appliance needs the WCCP Router IP address in order to register with the router.

The router needs the WCCP Cache IP address to know where to send browser requests.

An appliance can register with only one WCCP-capable router.

If WCCP routing isn't working, try entering the get stats wccp command on the command line. Check the configuration for problems.

For more information, see WCCP Version 1.0 Options Dialog Box.

Register the appliance with the WCCP version 2 routers if the routers on your network use WCCP version 2
  1. After you have enabled transparent proxy services, check Enable WCCP.
  2. Click WCCP V2 Options.
  3. Click the Cache IP Address drop-down list > select an appliance IP address configured for transparent proxy service. This IP address should also be the main appliance connection to the Internet or network containing the origin Web servers.
  4. Check either Use Unicast or Use Multicast.
  5. If you checked Use Multicast, enter the multicast IP address > click OK > click Apply. Excelerator validates the address.
  6. If you checked Use Unicast, insert one or more WCCP version 2 router IP addresses.
  7. If you want the appliance to use signed packets for WCCP version 2 communications, check Enable Secure WCCP Communications > type a password > click OK.
  8. Click Apply.

See C in Figure 15.

The router needs the WCCP Cache IP address to know where to send browser requests.

Excelerator needs one or more WCCP router IP addresses in order to register with the routers.

An appliance can register with multiple WCCP version 2 routers.

If WCCP routing isn't working, try entering the get stats wccp command on the command line. Check the configuration for problems.

For more information, see WCCP Version 2.0 Options Dialog Box.