Re: transparent cisco configuration

From: Laszlo Vecsey <>
Date: Thu, 2 Apr 1998 21:55:19 -0500 (EST)

Unfortunately, set ip next-hop address1 address2 doesn't work with IOS
11.3(2). I've heard reports it works with an older version though, 11.1(7)
for example. Strange that this feature would be taken out in a more
recent release, perhaps its a now a bug.

I'm probably going to end up writing a util to make a test connection to
the proxy server periodically (can someone suggest a suitable squid or
HTTP request for this purpose?), and if it fails to respond due to the
host not being available or the squid daemon not being up, a policy change
would be made automatically on the cisco via SNMP or telnet.


- lv

On Fri, 3 Apr 1998, Lincoln Dale wrote:

> In message <Pine.GSO.3.96.980402205045.24575G-100000@dinosaur>, Ming Lu writes:
> >Not true. You can set route-map and set netx-hop with mutiple ip
> >addresses; i.e., if first one fails, then the http traffic will go to the
> >second one, etc.., but once all of squid servers fail, you customers' http
> >traffic will be sucked into a "blachole" with no return. Any cisco cureent
> >stable release IOS support this.
> nope. this was *exactly* the point i was attempting to make.
> a route-map is only looking at things in terms of a per-packet perspective.
> if the _host_ running the cache is fine, but the cache itself is dead or
> not responding, you *won't* get the failover.
> you will *only* get fallover if the link-layer of the network interface
> is down on the router.
> >WCCP is total different story. It deos very nice job on loadbalancing,
> >failover traffic, very easy to configure. Cisco really know how to handle
> >traffic on the routers.
> yes. shame WCCP isn't documented as a rfc.
> wccp has heartbeats from the CCE's to the wccp-router, saying "as a proxy,
> i'm still functioning". if a timeperiod goes by without heartbeats, then
> the router stops forwarding http connections to that CCE.
> as far as the other issues of loadbalancing and CCE internals, i don't
> think that the squid list is the forum for discussing how it works.
> cheers,
> lincoln.
Received on Thu Apr 02 1998 - 18:58:42 MST

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