Re: WCCPv2 Service-List

I've never really used service-lists but did find this:

WCCP Closed Services and Open Services

In applications where packet flows are intercepted and redirected by a
Cisco IOS router to external WCCP client devices, it may be necessary to
block the packet flows for the application when a WCCP client device is not
available. This blocking is achieved by configuring a WCCP closed service.
When a WCCP service is configured as closed, WCCP discards packets that do
not have a WCCP client registered to receive the redirected traffic.

By default, WCCP operates as an open service, wherein communication between
clients and servers proceeds normally in the absence of an intermediary
device.

The* ip wccp **service-list* command can only be used for closed-mode
services. Use the* service-list *keyword and *service-access-list* argument
to register an application protocol type or port number.

When there is a mismatch between the service-list ACL and the definition
received from a cache engine, the service is not allowed to start.

So I guess you would specify it just like a normal group-list but you would
need to include the closed keyword.

-Marc

On Mon, Jun 25, 2012 at 10:15 PM, Tom Kacprzynski <tom.kac_at_gmail.com> wrote:

> Hello,
> I'm a little bit confused about the WCCPv2 service-list, hopefully someone
> could help me out.
>
> When you are configuring a dynamically defined service group, what do you
> configure in the named ACL? The ports for the relevant application?
>
>
> For example:
>
> R2(config)#ip wccp 3 service-list ?
> WORD IP named access list (extended)
>
> would the extended name ACL specify port for the application that will be
> redirected?
>
> Thank you in advance for any help.
>
>
> Tom
>
>
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-- 
Marc Abel
CCIE #35470
(Routing and Switching)
Blogs and organic groups at http://www.ccie.net