[squid-users] Multicast WCCPv2 + Squid 3.3.8

brendan kearney bpk678 at gmail.com
Wed Nov 11 12:45:51 UTC 2015

I am interested in this topic.  Would love to hear about your progress.

The os that squid runs on must participate in a dynamic routing protocol
such as ospf and needs to advertise a route to the multicast ip via itself.

Generally this is done by adding a virtual interface to the loopback and
giving that interface the multicast ip.  When the squid service is running
the os should advertise the route to the multicast ip on its loopback.
When the squid service is stopped the os should remove the route.

There are a couple of timing and interaction pieces you need to account
for, and manage outside of squid.

On Nov 10, 2015 11:26 PM, "Fatah Mumtaz" <fatahmumtaz at gmail.com> wrote:

> Hi everyone,
> Currently i'm building lab for my thesis on the topic Multicast WCCPv2
> with Squid. I'm trying to config WCCPv2 to work with single proxy server
> (Squid 3.3.8) and multiple Cisco 2821 routers. WCCPv2 works well with one
> proxy server and one router configuration. It's been 2 months since I'm
> trying to implement multicast WCCPv2 and actually I don't know how to
> config Squid to be able to communicate with multiple routers using
> multicast to announce itself presence. Because I've read the documentation
> from Cisco and I've concluded into something like this "the routers are
> somehow the "clients" but not by sending IGMP messages, just by listening
> for multicast packets send by the "sources", the cache engines, on a
> specific multicast group address. " . So the proxy server (or Squid)
> acted as the multicast server that sends multicast packets. Been look over
> the net and still have no clue.
> And my question is simple :
> 1. Is it possible to config squid to announce itself presence to the
> routers using multicast? And if it is possible, please kindly provide any
> detail.
> I also attached the topology i'm working on and please tell me if you need
> any further info.
> Thank You
> Fatah Mumtaz
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