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RE: IP WCCP posted 01/02/2007
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According to this mail which was discussed about WCCP so far, following
URL sample seems not to be a proper configuration. 
http://www.cisco.com/warp/public/117/cache_engine/transparentconfig.html

[Abr]
interface Ethernet0/0
 ip address 10.1.0.1 255.255.255.0
 ip wccp web-cache redirect in  <-----
 full-duplex

In my opinion, the configuration below will be correct.

interface Ethernet0/0
 ip address 10.1.0.1 255.255.255.0
 ip wccp web-cache redirect out
 full-duplex


-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Scott Morris
Sent: Wednesday, October 11, 2006 1:01 AM
To: 'sabrina pittarel'; 'Chris Broadway'; ccielab@xxxxxxxxxxxxxx
Subject: RE: IP WCCP

It means you could put inbound from all other interfaces (except the one
you're trying to avoid), or you could use the redirect-list portion of the
global command to create an ACL with exclusions.

 
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-J
IPExpert VP - Curriculum Development
IPExpert Sr. Technical Instructor
smorris@xxxxxxxxxxxx
http://www.ipexpert.com
 
 

-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
sabrina pittarel
Sent: Tuesday, October 10, 2006 11:20 AM
To: Chris Broadway; ccielab@xxxxxxxxxxxxxx
Subject: Re: IP WCCP

Think it in this way....
"inbound" means:

redirect all "inbound" traffic on
this interface to the cache engine(s)

"outbound" means:

redirect all
"outbound" traffic on this interface to the cache engine(s). 

When you
configure WCCP on outbound direction you can exclude from redirection some
ingress interface using the "redirect exclude in" intf command.
What it means
is the following:

"redirect to the cache engines all traffic outbound interface X, except if
it was received on interface Y"

Hope this helps
Sabrina

----- Original Message ----
From: Scott Morris <swm@xxxxxxxxxx>
To:
Chris Broadway <midatlanticnet@xxxxxxxxx>; ccielab@xxxxxxxxxxxxxx
Sent:
Tuesday, October 10, 2006 6:31:27 AM
Subject: RE: IP WCCP

The redirect is
always from the perspective of the router.  So follow the packet (location
of the cache is mostly irrelevant for this).

User ------> (fa0/0) Router (s0/0)
----> Internet

As a user makes the request, AT the fa0/0 interface, this would be inbound.
The same packet at the s0/0 interface would be outbound.
Make a choice!

It's useful in case there are multiple interfaces on your router (with
users) and you want to redirect some but not others.  Just one redirect is
necessary though.

I believe about 8-9 months ago there was a fairly detailed discussion about
web caching and the actual packet flow on here if you want to search the
archives.

HTH,

 
Scott Morris, CCIE4
(R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE #153, CISSP, et al.
CCSI/JNCI-M/JNCI-J
IPExpert VP - Curriculum Development
IPExpert Sr. Technical
Instructor
smorris@xxxxxxxxxxxx
http://www.ipexpert.com
 
 

-----Original
Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Chris Broadway
Sent: Tuesday, October 10, 2006 9:05 AM
To:
ccielab@xxxxxxxxxxxxxx
Subject: IP WCCP

Group,

I am a little confused by the
DOC on wccp.  If I have a web cache system downstream on R1's E1 interface,
would my redirects be inbound or outbound?
>From the DOC I get the impression
that the redirect command might mean what flow of traffic do I want to
redirect.  For example, If I have traffic coming in on E0 and my web cache
system is out e1, I would "redirect inbound on E0"...But I always thought
the redirect was suppose to point to the cache system.  In this case there
would be a "redirect outbound" on E1.  Did I mis read the doc?

-Broadway
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