- UDP port 2048
- content engines also communicate with each other using WCCP
- Up to 32 content engines WCCPv1; lowest IP address – lead engine
- Content engines request information on the cluster members from the WCCP
router, which replies with a list. This permits the lead content engine to determine how
traffic should be distributed to the cluster.
- WCCPv1 – only HTTP port 80
- WCCPv2:
- TCP and UDP traffic other than TCP port 80 (FTP, Real Audio, Video)
- Permits segmenting caching services provided by a caching cluster to a particular
protocol or protocols
- Supports multicast
- Supports multiple routers (up to 32 per cluster)
- MD5
- Load distribution
- Transparent error handling
ip wccp web-cache group-address 239.128.1.100 password cisco
! Next we configure an interface to redirect WCCP web-cache
! traffic outbound to a content engine:
int fa0/0
ip wccp web-cache redirect out
! Finally, inbound traffic on interface fa0/1 is excluded from redirection:
int fa0/1
ip wccp redirect exclude in
! filter traffic only for certain clients
ip wccp web-cache redirect-list access-list
! types of redirected traffic the router should accept
ip wccp web-cache group-list access-list