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Re: WCCPv2 strangeness - continued

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On Tue, Dec 05, 2006, Jason Taylor wrote:

> The intercept router:
>  - Cisco 6509
>  - IOS version 12.2.18sxf

Hm, I've heard rumours that there's been some WCCPv2 bugs in the SXF code.
Yah, there's an unrelated bug resolved in 12.2(18)SXF7 and a couple more
in previous releases but nothing related to GRE. Ok.

>  - loopback IP: 172.20.1.72
>  - WCCP IP (IP facing squid): 192.168.40.33 (default gateway for squid)

> +-------+-------+   +------------+
> | 192.168.251.1 |   |  Internet  |
> |   Cisco 6509  +---+  Firewall  +==> To Internet
> |  v12.2.18 sxf |   | NAT is here|
> | 192.168.40.33 |   +------------+
> +-------+-------+
>         |
> +-------+-------+
> | 192.168.40.37 |
> |  Squid Proxy  |
> +---------------+
> 
> Squid.conf settings:
> wccp2_router  192.168.40.33
> wccp2_address 192.168.40.37
> wccp2_service standard 0

If its directly connected then I'd give using L2 forwardinga shot over
GRE forwarding. Just set wccp2_forwarding_method 2 in squid.conf.
See if L2 redirection does the right thing. Keep the iptables rule
but toss the GRE tunnel.

(I'd also suggest trying mask assignment over hash assignment with
Squid-2.6 but apparently mask assignment is causing Squid to crash.
I'm testing a workaround atm. It won't matter unless you're doing
quite a lot of traffic and you notice the MSFC CPU usage go way up.)



Adrian

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