RE: [NTISP] CACHING DEVIC

Chazakis Ioannis ( (no email) )
Fri, 14 Apr 2000 11:37:15 +0300

Actually its relatively simple to tell a cisco to transparently redirect
traffic to a proxy server.
It is done by defining an ip policy and an access list.

i.e
Assuming that you want to redirect all your lan traffic to a proxy server
you would do the following

first configure the interface with a route map
>int ethernet 0
> ip policy route-map redirect-proxy

then define the route map. This tells the router to check access-list 110
for matching conditions and redirect anything that matches to the next-hop
ip address (which usually is the proxy)

>route-map redirect-proxy permit 10
> match ip address 110
> set ip default next-hop proxy.ip.address

then set an access list defining the addresses and protocols to redirect
(www in our example)

>access-list 110 permit tcp network.address network.mask any eq www

You will find that it takes a bit of processor time when you do that, but
performance seems unaffected.

Regards

Chazakis Ioannis
CTO
Acropolis Net

-----Original Message-----
From: ntisp-request@iea-software.com
[mailto:ntisp-request@iea-software.com]On Behalf Of Jeff Binkley
Sent: Thursday, April 13, 2000 7:15 PM
To: NTISP@IEA-SOFTWARE.COM
Subject: RE: [NTISP] CACHING DEVIC

How hard is it to setup a Cisco router to do transparent caching ? I am
assuming you are using WCCP and the Squid box has two NICs in it with
two different addresses ?

Jeff Binkley
ASA Network Computing

N>Another bonus with a Transparent Caching server is the fact that those
N>= Advertising firms (doubleclick.com) can NOT get much information
N>about = you. Or practically can't get anything from your clients.
N>That is also = a bit encouraging for ISPs who want to show a bit of
N>security to the = client.

N>-----Original Message-----
N>From: ntisp-request@iea-software.com
N>[mailto:ntisp-request@iea-software.com]On Behalf Of Chazakis Ioannis
N>Sent: Thursday, April 06, 2000 7:31 AM
N>To: ntisp@iea-software.com
N>Subject: RE: [NTISP] Caching devices good? bad? Help

N>We have been using squid and set our cisco routers to do transparent =
N>caching
N>for some time now.. Works like a charm.
N>Cidera looks very good, infact we are expecting their technician to =
N>install
N>the dish and adapter. Apart from the large customer base, its also got
N>a 45Mbps downlink to each dish, so its pretty fast too.

N>-----Original Message-----
N>From: ntisp-request@iea-software.com
N>[mailto:ntisp-request@iea-software.com]On Behalf Of Peter Deacon
N>Sent: Thursday, April 06, 2000 1:45 AM
N>To: ntisp@iea-software.com
N>Subject: Re: [NTISP] Caching devices good? bad? Help

N>On Tue, 4 Apr 2000, JM Foster wrote:

N>> We used a cache server from Cobalt Networks.
N>> Personally I don't think caching is a viable solution
N>> on the mid to small level ISP because the community is not large
N>> enough to have a decent cache. I spoke to Cidera.com, they use a =
N>global
N>> community of 8.5 million customers to create their cache.
N>> This is what we are going to move to.

N>There's something about caches that seem faster even if only one
N>person = is
N>using it and the data your requesting is not in the cache -- over
N>dialup anyway (but it might be my imagination:) I think it has
N>something to do with tcp chat latency being absorbed by the cache
N>buffering data = locally.

N>Have Fun!
N>Peter

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CMPQwk 1.42 9999

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