We are in the process of implimenting Cisco's Ironport S160 appliance for web filtering. I have a choice between integrating via WCCP at our PIX firewall, or on a layer 4 switch. We do have a 6509 in our core with a SUP1a MSFC1 PFC1.
Can we go the layer 4 route on the 6509? Do I have all I need for that? If so would there be an advantage going that route? The documentation seems very vague on the layer 4 configuration, it basically says set the Ironport device to Layer 4 mode and that's it.
What do you think?