User manual

Chapter 2

Setting Up the

Cobalt CacheRaQ

This chapter explains how to conﬁgure the Cobalt CacheRaQ for

your network. If the CacheRaQ has been conﬁgured previously

for a different network, refer to “Changing the Network

Conﬁguration,” in Appendix A.

The conﬁguration process occurs in two phases.

• “Phase 1: Making the Connection,” explains how to install

the CacheRaQ on your network.

• “Phase 2: Setting Up With the Browser,” includes the

conﬁguration steps you need to perform after the CacheRaQ

is physically up and running on the network.

Before proceeding further with the conﬁguration of the

CacheRaQ, decide which mode of operation you’ll be using —

Traditional Proxy Caching mode or Transparent Caching mode.

• If you plan to use Traditional Proxy Caching mode, you only

have to conﬁgure the Network 1 interface.

• If you plan to use Transparent Caching mode, you need to

decide whether you want to use the Network 2 interface in

addition to the Network 1 interface (the Network 1 interface

is always used). Use the Network 2 interface if you want to

force your clients’ trafﬁc to ﬂow through the CacheRaQ. This

mode is useful if, for example, you want to be able to ﬁlter or

log all of your clients’ HTTP trafﬁc.

Note that it is not necessary to use the Network 2 interface when

using Transparent Caching mode. The only requirement for

transparent caching is that client trafﬁc must be routed to the

CacheRaQ. For example, this can be done by assigning the

clients’ gateway IP address to the CacheRaQ’s Network 1 IP

address. In an ISP POP environment, this can be done by

conﬁguring your access concentrators to use the CacheRaQ as the

gateway. Appendix C describes example network conﬁgurations.