Re: [squid-users] WCCP: Web Cache ID 0.0.0.0

Hi Bryan,

I have a complete, working, WCCP + squid system in one of my sites. I
was trying to create a near identical setup for a different site, but it
wasn't working.

I suspect either kernel versions, IOS versions or VLAN oddities as the
problem, as those are the major differences between the environments. I
got the first set working pretty easily, but have spent over a week
debugging the new set.

James

Shoebottom, Bryan wrote:

>James,
>
>If I understand you correctly, you currently have a working system with
>WCCP, you are now trying to maintain the system and router with updates
>and WCCP now fails?
>Interesting...
>Henrik?
>
>Thanks,
>Bryan
>
>
>-----Original Message-----
>From: James Masson [mailto:jmasson@verity.com]
>Sent: October 14, 2005 8:07 PM
>To: squid-users@squid-cache.org
>Subject: RE: [squid-users] WCCP: Web Cache ID 0.0.0.0
>
>
>I'm having exactly the same problem as Bryan on a new squid wccp system.
>I have a working set too, so I'm 95% certain it's not user error.
>
>The symptoms are exactly the same. Everything looks peachy in IOS,
>except the cache IP is listed as 0.0.0.0 - state Usable. According to
>the router, packets are being redirected.
>Squid works fine as a normal cache, the iptables redirect works OK, the
>Cisco 2600 sees the here_i_am, and replies with an I_see_you
>
>I'm using the same syntax to create the gre tunnel, as per the faq.
>
>The only thing that differs between the working and broken setups are
>kernel and IOS versions, I'm working to remove the differences and
>hopefully see where it breaks.
>
>Another similarity to Brian's setup, is that the broken version is on a
>VLAN, while the working one isn't.
>
>----
>Working systems
>Gentoo-sources-2.6.10-r6
>Squid 2.5.10-r2
>IOS 12.0(7)Tfc2
>----
>Broken Systems
>Gentoo-sources-2.6.12-r10
>Squid 2.5.10-r2
>IOS 12.1(20)fc2
>----
>
>
>James Masson
>
>
>
>
>>-----Original Message-----
>>From: Shoebottom, Bryan [mailto:BShoebottom@fanshawec.ca]
>>Sent: 14 October 2005 05:25
>>To: Henrik Nordstrom
>>Cc: Squid Users
>>Subject: RE: [squid-users] WCCP: Web Cache ID 0.0.0.0
>>
>>Henrik,
>>
>>1. I can't confirm this for sure, from the router's point of view
>>all buckets are assigned to the only cache, but the web cache id is
>>0.0.0.0. Using a packet sniffer I can see that the router sends the
>>WCCP packets with all buckets and the cache immediately
>>responds with no
>>buckets assigned.
>>
>>2. For testing, I have this configuration:
>> Ip wccp version 1
>> Ip wccp web-cache
>>
>> On the interface we are testing (VlanX)
>> Ip wccp web-cache redirect in
>>
>>3. There are no ACL's applied to WCCP, or the incoming interface.
>>The outgoing interface (INet) only allows traffic from the network the
>>cache and WCCP router is on, not VLanX. Would it matter beyond that?
>>
>>4. The router properly supports WCCP version 1 and 2.
>>
>>
>>I have been working with Cisco on this and they are saying, of course,
>>that the cache is at fault because it is sending something to
>>the router
>>that it doesn't like. What's next?
>>
>>Thanks,
>>Bryan
>>
>>
>>
>>
>>-----Original Message-----
>>From: Henrik Nordstrom [mailto:hno@squid-cache.org]
>>Sent: October 14, 2005 5:39 AM
>>To: Shoebottom, Bryan
>>Cc: Squid Users
>>Subject: RE: [squid-users] WCCP: Web Cache ID 0.0.0.0
>>
>>On the, 13 Oct 2005, Shoebottom, Bryan wrote:
>>
>>
>>
>>>What do I do when the router is not forwarding packets, but all
>>>
>>>
>>buckets
>>
>>
>>>are assigned to that cache?
>>>
>>>
>>Look into your acls on the router, and which router interface(s) is
>>running WCCP.
>>
>>For the router to redirect the following needs to be fulfilled:
>>
>> 1. The cache and router must have agreed on the cache being used
>>(OK).
>>
>> 2. The correct interface on the router must have WCCP enabled
>>
>> 3. The acls on the router must not prevent WCCP from being used on
>>the
>>traffic in question.
>>
>> 4. The router firmware must properly support WCCP (v1).
>>
>>For authorative answers on 2 & 3 see the manual to your
>>router on how to
>>
>>configure your router for WCCP use. Hints can be found in the
>>Squid FAQ.
>>
>>Regards
>>Henrik
>>
>>
>>
>>
>
>
>
Received on Tue Oct 18 2005 - 04:11:30 MDT