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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 81 Configuring WCCP Version 2 Services
Configuring WCCP
Note
More than one service can run on a switch at the same time, and routers and content engines can be part
of multiple service groups at the same time.
The dynamic services are defined by the content engines; the content engine instructs the router which
protocol or ports to intercept, and how to distribute the traffic. The router itself does not have information
on the characteristics of the dynamic service group’s traffic, because this information is provided by the
first content engine to join the group. In a dynamic service, up to eight ports can be specified within a
single protocol TCP or UDP).
Cisco Content Engines, for example, use dynamic service 99 to specify a reverse-proxy service.
However, other content engines may use this service number for some other service. The following
configuration information deals with enabling general services on Cisco routers. Refer to the content
engine documentation for information on configuring services on content engines.
To enable a service on a Catalyst 4500 series switch, perform this task:
Command
Purpose
Step 1
Switch(config)#
ip wccp
[
vrf
vrf-name
][
group-address
groupaddress
]
[
redirect-list
access-list
] [
group-list
access-list
] [
password
password
]
For IPv6
Switch(config)#
ipv6 wccp
[
vrf
vrf-name
]
[
group-address
groupaddress
] [
redirect-list
access-list
] [
group-list
access-list
]
Specifies the following:
•
A dynamic service to enable on the switch,
•
The IP multicast address used by the service group
(optional)
•
The redirect access list to control the traffic to be
redirected (optional)
•
The group list to use for content engine membership
(optional)
•
Whether to use MD5 authentication (optional)
Enables the WCCP service.
Step 2
Switch(config-if)#
[no] ip wccp check services
all
For IPv6
Switch(config-if)#
[no] ipv6 wccp check services
all
If a service matches the packet and the service has a
redirect access list configured, then the IP packet will be
checked against the access list. If the packet is rejected by
the access-list, the packet will not be passed down to
lower priority services unless the
ip wccp check services
all
command is configured. After the
ip wccp check
services all
command is configured, WCCP will continue
to attempt to match the packet against any remaining low
priority services configured on the interface.
Step 3
Switch(config)#
interface
type number
Specifies the client interface to be configured and enters
interface configuration mode.
Step 4
Switch(config-if)#
ip wccp
[
vrf
vrf-name
]{
web-cache
|
service-number
}
redirect
{
in
|
out
}
For IPv6
Switch(config-if)#
ipv6 wccp
[
vrf
vrf-name
]
redirect
in
For IPv4, enables WCCP redirection for ingress or egress
traffic on the specified client interface.
For IPv6, enables WCCP redirection for ingress traffic on
the specified client interface.
Summary of Contents for Catalyst 4500 Series
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