From: ihatecisco@att.net
Date: Fri Mar 19 2004 - 08:51:40 GMT-3
you are correct in your thinking. Think of it this way. The whole purpose
of wccp redirection is to simplify configuration for end users/clients. So
in a way it makes sense to only have to enable this command on only 1 or 2
interfaces on a router that acts as an aggregation/distribution point.
The Out would be used for redirecting outbound requests to the internet.
{Client side web caching}
The In would be used for redirecting inbound requests from the internet
{server side web caching.}
ip wccp <service> redirect
To enable packet redirection on an outbound or inbound interface using Web
Cache Communication Protocol (WCCP), use the ip wccp service redirect
interface configuration command. To disable WCCP redirection, use the no
form of this command.
ip wccp service redirect {out | in}
no ip wccp service redirect {out | in}
Syntax Description
service
Specifies the service group. You can specify the web-cache
keyword, or you can specify the identification number(from 0 to 99) of the
service.
redirect
Enables packet redirection checking on an outbound or inbound
interface.
out
Specifies packet redirection on an outbound interface.
in
Specifies packet redirection on an inbound interface.
***A small point to note
Its a good idea to make sure that you check all commands to see if they need
a special command to be enabled before assuming they are configured.
I know some features like mls qos, WRED & Switches-Port Security can burn
you if you aren't paying attention, and forget to enable them.
----- Original Message -----
From: "Ng, Kim Seng David (David)" <ksng@avaya.com>
To: <ccielab@groupstudy.com>
Sent: Friday, March 19, 2004 5:27 AM
Subject: Confirmation on my understanding of WCCP
> Hello group,
>
> I just would like to confirm my understanding on the "ip wccp redirect
OUT" command. Gone through the grpstudy archives, doc cd and cisco.com but
just to make sure I get it right. I had no problems understanding the other
"redirect in" cmd though. Anyway, I have taken the following config example
from doc CD:
>
> "Running a Web Cache Service Example
> The following example shows a web cache service configuration session:
>
> router# configure terminal
> router(config)# ip wccp web-cache
> router(config)# interface ethernet 0
> router(config-if)# ip wccp web-cache redirect out "
>
> My understanding from the above config is that any http request outgoing
from interface e0 will be re-directed to some other interfaces where the
web-cache is residing. Interface e0 would likely be a connection to the
internet or where a web server is located. Interface e0 will not be where
the web-cache is located.
>
> Is my understanding correct?
>
> Thanks in advance
> David
>
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