From: steve.skinner@uk.pwc.com
Date: Wed Jul 07 2004 - 11:01:02 GMT-3
Hi
Q1/2
the traffic redirects both ways because you can have local or remote
cache`s
E.G
i have a local network ,with a router connecting me to the outside
world/internet and i have my cache engine on the local network .
in this situation you would need to redirect outbound traffic .
in a standard scenario all traffic to the internet would follow this path
access switch - distribution switch - router -(firewall that's passive ) -
internet
what we want to do it put a stop for all traffic going outbound to the net
and send it to the cache engine first ,which will then check it and either
issue the page ..or retrieve the page itself and then re-issue it ..
if we are hosting a web page for example , and instead of going to the web
site THROUGH our DMZ we could put an engine on the outside of our DMZ and
get the web page requests to be re-directed to the engine first....this
would be inbound re-direct
Q3
no you don't have to specify a service to get wccp to work
the command "ip wccp <number> redirect <in|out>" enable`s you to config
re-direct for a preset service using an access list ..
i.e if you only want web traffic re-directed for the 10.45.60.0 network you
could use
ip wccp 80 group-list 1
access-list 1 permit 10.45.60.0
i just put ip wccp web-cache ,as this is a dynamic protocol that discover`s
the engine you use and associate's itself with any engine's
HTH
Stephen Skinner
Senior Network Support Analyst
UK IT
Price WaterHouse Coopers
Tel +44 207 2134182
"Karim"
<karim_ccie@hotmail To: <ccielab@groupstudy.com>
.com> cc:
Sent by: Subject: WCCP web cache redirect ???
nobody@groupstudy.c
om
07/07/2004 14:26
Please respond to
"Karim"
Hi all,
I was confused about the redirect direction used in the "ip wccp redirect
<in|
out>" command. How can say that the in or out will be used ?? does it
depend
on the direction of the traffic and the interface applied on ??
Another question, may be It will be solved by itself if the got the
concept.
If the host sending the http traffic and the cache engine used for caching,
are both on the same ether segment. Will I use "ip wccp web cache IN" OR
"ip
wccp web cache out" on the interface of the router connected to both the
host
and the cache engine ????
My last question, when do I need to use the commands "ip wccp <number>" and
"ip wccp <number> redirect <in|out>" instead of "ip wccp web-cache" and
"ip
wccp web cache redirect <in|out>" ???
Thanks for your help,
Karim.
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