From: David Lonnie (david.lonnie@gmail.com)
Date: Tue Jun 03 2008 - 13:51:55 ART
Derek:
Thanks very much.
I suddenly see the light.
On Wed, Jun 4, 2008 at 12:32 AM, Derek Pocoroba <dpocoroba@gmail.com> wrote:
> 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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