From: Derek Pocoroba (dpocoroba@gmail.com)
Date: Tue Jun 03 2008 - 13:32:15 ART
The second diagram I listed has a "non client" so in that case the out
keyword would include all incoming interfaces( including this non client).
Since there is a non client you would need the extra "exclude in" command.
Or you could leave off the "exclude" and just use an ACL to filter off the
E3 network. Many different options exist.
David,
The direction does not actually effect where the CE sits. It just specifies
when the redirection takes place. The router will learn where the CE is via
WCCP. In the exaple you listed you could use the "in" keyword to speed up
the process since it would save the router some resources. You could also
use "ip route-cache same-interface" but its not needed. Assuming this is a
basic lab example you are referring to. There are times where you would need
"out" on the client side interface and the exit interface, but thats only
if you are doing things like ip spoofing. Hopefully you don't get something
like that on the lab :)
HTH
On Tue, Jun 3, 2008 at 9:06 AM, Mike Haddad <mike.haddad@hotmail.com> wrote:
> Thanks a lot Derek but if we set it out on the second scenario wouldn't be
> enough?
>
> ------------------------------
> Date: Tue, 3 Jun 2008 08:33:34 -0700
> From: dpocoroba@gmail.com
> To: mike.haddad@hotmail.com
> Subject: Re: WCCP redirection IN or OUT
> CC: ccielab@groupstudy.com
>
>
> Mike,
>
> There was a good post a while back that explained WCCP direction. Think of
> the redirect direction from the routers perspective.
> See the simple diagram below
>
> example showing the "in" direction
>
> Destination--E0--Router--E1--Client
> |
> E2
> |
> Cache Engine
> !
> interface Ethernet0/1
> ip address 10.10.100.6 255.255.255.0
> ip wccp web-cache redirect in
> !
>
> another one that shows how to use the "out" direction
>
> Non Client
> |
> E3
> |
> Destination--E0--Router--E1--Client
> |
> E2
> |
> Cache Engine
> !
> interface Ethernet0/0
> ip address 10.10.254.1 255.255.255.0
> ip wccp web-cache redirect out
> !
> interface Ethernet0/3
> ip address 10.10.100.1 255.255.255.0
> ip wccp redirect exclude in
>
> HTH
>
> On Mon, Jun 2, 2008 at 8:59 PM, Mike Haddad <mike.haddad@hotmail.com>
> wrote:
> >
> > Hello All, I am just wondering when should I put WCCP redirection in or
> out.
> > For me it always makes sense to put the wccp redirect in on the interface
> so
> > that traffic will be redirected as it enters the input queue. When doing
> IE
> > labs sometimes they apply it in and sometimes out. I appreciate if
> somebody
> > can clarify this, Regards,
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>
>
> --
> Derek Pocoroba
> CCIE #18559
>
>
> ------------------------------
>
-- Derek Pocoroba CCIE #18559
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