Yup....looks like an IOS related problem....try a different release of IOS.


-----Original Message-----
From: [email protected] on behalf of Alex Montoanelli
Sent: Mon 5/4/2009 4:00 PM
To: squid-users
Subject: Re: [squid-users] CISCO + WCCP Stopping forward packets
 
Hi, after a day works fine, the problem appear.

I see the HereIAm and ISeeYou  packets between Cisco and Squid, above
is the logs of both.

I have 4 Instances of Squid, running on the same machine, I just
shutdown 3 of then, and start again, and every one
go to normal. The fourth instance back to normal without any touch.


The *** mark, is the begin of trouble.

------CISCO--------
May  4 17:21:32 cliente-1-254.unetvale.com.br 240185: 240210: *May  4
21:23:36: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.140 w/
rcv_id 00091ACD
May  4 17:21:37 cliente-1-254.unetvale.com.br 240188: 240213: *May  4
21:23:41: WCCP-PKT:S00: Received valid Here_I_Am packet from
200.193.10.141 w/rcv_id 00091ACB
May  4 17:21:37 cliente-1-254.unetvale.com.br 240189: 240214: *May  4
21:23:41: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.141 w/
rcv_id 00091ACF
May  4 17:21:41 cliente-1-254.unetvale.com.br 240190: 240215: *May  4
21:23:44: WCCP-PKT:S00: Received valid Here_I_Am packet from
200.193.10.143 w/rcv_id 00091ACC
May  4 17:21:41 cliente-1-254.unetvale.com.br 240191: 240216: *May  4
21:23:44: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.143 w/
rcv_id 00091AD0
May  4 17:21:42 cliente-1-254.unetvale.com.br 240192: 240217: *May  4
21:23:46: WCCP-PKT:S00: Received valid Here_I_Am packet from
200.193.10.140 w/rcv_id 00091ACD
May  4 17:21:42 cliente-1-254.unetvale.com.br 240193: 240218: *May  4
21:23:46: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.140 w/
rcv_id 00091AD1
May  4 17:22:31 cliente-1-254.unetvale.com.br 240244: 240269: *May  4
21:24:35: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.141 w/bad
rcv_id 00091ACB
May  4 17:22:32 cliente-1-254.unetvale.com.br 240247: 240272: *May  4
21:24:36: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.140 w/bad
rcv_id 00091AD1
May  4 17:23:27 cliente-1-254.unetvale.com.br 240310: 240335: *May  4
21:25:30: WCCP-PKT:S00: Received valid Here_I_Am packet from
200.193.10.143 w/rcv_id 00091AFE
****May  4 17:23:27 cliente-1-254.unetvale.com.br 240311: 240336: *May
 4 21:25:30: WCCP-EVNT:S00: Assignment wait timer started
May  4 17:23:31 cliente-1-254.unetvale.com.br 240314: 240339: *May  4
21:25:34: WCCP-EVNT:S00: Redirect_Assignment packet from
200.193.10.143 w/bad rcv_id 00091AFE
May  4 17:24:54 cliente-1-254.unetvale.com.br 240378: 240403: *May  4
21:26:58: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.140 w/bad
rcv_id 00091AD1
May  4 17:24:54 cliente-1-254.unetvale.com.br 240379: 240404: *May  4
21:26:58: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.140 w/
rcv_id 00091B24
May  4 17:25:34 cliente-1-254.unetvale.com.br 240419: 240444: *May  4
21:27:38: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.140 w/
rcv_id 00091B39
May  4 17:25:42 cliente-1-254.unetvale.com.br 240429: 240454: *May  4
21:27:46: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.141 w/bad
rcv_id 00091ACB
May  4 17:25:51 cliente-1-254.unetvale.com.br 240437: 240462: *May  4
21:27:55: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.143 w/
rcv_id 00091B40
May  4 17:25:53 cliente-1-254.unetvale.com.br 240438: 240463: *May  4
21:27:57: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.141 w/bad
rcv_id 00091ACB
May  4 17:25:53 cliente-1-254.unetvale.com.br 240439: 240464: *May  4
21:27:57: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.141 w/
rcv_id 00091B41
May  4 17:25:57 cliente-1-254.unetvale.com.br 240440: 240465: *May  4
21:28:01: WCCP-PKT:S00: Sending Removal_Query packet to
200.193.10.141w/ rcv_id 00091B42
May  4 17:25:58 cliente-1-254.unetvale.com.br 240441: 240466: *May  4
21:28:02: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.140 w/bad
rcv_id 00091AD1
May  4 17:25:58 cliente-1-254.unetvale.com.br 240442: 240467: *May  4
21:28:02: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.140 w/
rcv_id 00091B43
May  4 17:25:58 cliente-1-254.unetvale.com.br 240443: 240468: *May  4
21:28:03: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.142 w/bad
rcv_id 00091B25
May  4 17:25:58 cliente-1-254.unetvale.com.br 240444: 240469: *May  4
21:28:03: WCCP-PKT:S00: Sending I_See_You packet to 200.193.10.142 w/
rcv_id 00091B44
May  4 17:25:58 cliente-1-254.unetvale.com.br 240445: 240470: *May  4
21:28:03: WCCP-PKT:S00: Sending Removal_Query packet to
200.193.10.140w/ rcv_id 00091B45
May  4 17:26:00 cliente-1-254.unetvale.com.br 240446: 240471: *May  4
21:28:04: WCCP-PKT:S00: Sending Removal_Query packet to
200.193.10.142w/ rcv_id 00091B46
May  4 17:26:23 cliente-1-254.unetvale.com.br 240474: 240499: *May  4
21:28:27: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.141 w/bad
rcv_id 00091B41
May  4 17:26:28 cliente-1-254.unetvale.com.br 240476: 240501: *May  4
21:28:32: WCCP-PKT:S00: Sending Removal_Query packet to
200.193.10.141w/ rcv_id 00091B51
May  4 17:26:28 cliente-1-254.unetvale.com.br 240477: 240502: *May  4
21:28:32: WCCP-EVNT:S00: Here_I_Am packet from 200.193.10.140 w/bad
rcv_id 00091B49
----------


Squid - Cachelog
----------
2009/05/04 17:21:33| ctx: enter level  0:
'http://wm-ttv-mirror01-mia.terra.com/kboing/439755.asf'
2009/05/04 17:21:33| httpProcessReplyHeader: Impossible keep-alive
header from 'http://wm-ttv-mirror01-mia.terra.com/kboing/439755.asf'
2009/05/04 17:21:41| ctx: exit level  0
2009/05/04 17:21:41| wccp2HereIam: sending to service id 0
2009/05/04 17:21:41| Sending HereIam packet size 144
2009/05/04 17:21:41| Incoming WCCPv2 I_SEE_YOU length 264.
2009/05/04 17:21:41| Complete packet received
2009/05/04 17:21:41| Incoming WCCP2_I_SEE_YOU Received ID old=596685 new=596689.
2009/05/04 17:21:41| Cleaning out cache list
2009/05/04 17:21:41| checking cache list: (8c0ac1c8:8c0ac1c8)
2009/05/04 17:21:41| checking cache list: (8d0ac1c8:8c0ac1c8)
2009/05/04 17:21:41| checking cache list: (8e0ac1c8:8c0ac1c8)
2009/05/04 17:21:41| checking cache list: (8f0ac1c8:8c0ac1c8)
2009/05/04 17:21:41| Change not detected (2496 = 2496)
2009/05/04 17:21:44| ctx: enter level  0: 'http://br.msn.com/'
2009/05/04 17:21:44| httpProcessReplyHeader: Impossible keep-alive
header from 'http://br.msn.com/'
2009/05/04 17:21:51| ctx: exit level  0
2009/05/04 17:21:51| wccp2HereIam: sending to service id 0
2009/05/04 17:21:51| Sending HereIam packet size 144
2009/05/04 17:22:01| wccp2HereIam: sending to service id 0
2009/05/04 17:22:01| Sending HereIam packet size 144
2009/05/04 17:22:11| wccp2HereIam: sending to service id 0
2009/05/04 17:22:11| Sending HereIam packet size 144
2009/05/04 17:22:21| wccp2HereIam: sending to service id 0
2009/05/04 17:22:21| Sending HereIam packet size 144
2009/05/04 17:22:25| CACHEMGR: <unknown>@10.100.0.101 requesting 'info'
2009/05/04 17:22:21| wccp2HereIam: sending to service id 0
2009/05/04 17:22:21| Sending HereIam packet size 144
2009/05/04 17:22:25| CACHEMGR: <unknown>@10.100.0.101 requesting 'info'
2009/05/04 17:22:25| CACHEMGR: <unknown>@10.100.0.101 requesting 'info'
2009/05/04 17:22:30| CACHEMGR: <unknown>@10.100.0.101 requesting 'counters'
2009/05/04 17:22:30| CACHEMGR: <unknown>@10.100.0.101 requesting 'info'
2009/05/04 17:22:31| wccp2HereIam: sending to service id 0
2009/05/04 17:22:31| Sending HereIam packet size 144
2009/05/04 17:22:41| wccp2HereIam: sending to service id 0
2009/05/04 17:22:41| Sending HereIam packet size 144
2009/05/04 17:22:51| wccp2HereIam: sending to service id 0
2009/05/04 17:22:51| Sending HereIam packet size 144
2009/05/04 17:23:01| wccp2HereIam: sending to service id 0
2009/05/04 17:23:01| Sending HereIam packet size 144
2009/05/04 17:23:11| wccp2HereIam: sending to service id 0
2009/05/04 17:23:11| Sending HereIam packet size 144
2009/05/04 17:23:26| wccp2HereIam: sending to service id 0
2009/05/04 17:23:26| Sending HereIam packet size 144
2009/05/04 17:24:33| wccp2HereIam: sending to service id 0
2009/05/04 17:24:33| Sending HereIam packet size 144
2009/05/04 17:24:43| wccp2HereIam: sending to service id 0
2009/05/04 17:24:43| Sending HereIam packet size 144
2009/05/04 17:24:53| wccp2HereIam: sending to service id 0
2009/05/04 17:24:53| Sending HereIam packet size 144
2009/05/04 17:25:03| wccp2HereIam: sending to service id 0
2009/05/04 17:25:03| Sending HereIam packet size 144
2009/05/04 17:25:13| wccp2HereIam: sending to service id 0
2009/05/04 17:25:13| Sending HereIam packet size 144
2009/05/04 17:25:23| wccp2HereIam: sending to service id 0
2009/05/04 17:25:23| Sending HereIam packet size 144
2009/05/04 17:25:33| wccp2HereIam: sending to service id 0
2009/05/04 17:25:33| Sending HereIam packet size 144
-------------


Alex Montoanelli
Administração e Gerência de Redes
Unetvale Conectividade
+55 48 3263 8700


On Mon, May 4, 2009 at 11:35 AM, Ritter, Nicholas
<[email protected]> wrote:
>
> I have not noticed other faqs requiring this, but make sure your iptables is 
> allowing UDP port 2048 on the Ethernet and gre interfaces of the squid box 
> and coming from the IP address listed in the "sh ip wccp" (the router 
> identifier IP.)
>
> Also, update you IOS. The loss of the hello packets is the problem, but the 
> reason behind the packet transmission loss is the mystery. You can try 
> running a packet sniffer on the squid box to make sure it is sending the 
> "Here I am" packets, are increase the debug level of squid to see them.
>
> My experience as been that the problem is on the Cisco side though.
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf 
> Of Alex Montoanelli
> Sent: Monday, May 04, 2009 8:57 AM
> To: Ritter, Nicholas
> Subject: Re: [squid-users] CISCO + WCCP Stopping forward packets
>
> Hello Nicholas.
>
> When the service break down, the related fields, are not 0, is equal
> 1/1. ( 1 Client / 1 Router ).
>
> I have setting up a router to log to a syslog server, and when the
> issue occur, the packets/messages are not transmited.
>
> My router, a Cisco 2811 has running a
> 'flash:c2800nm-ipbase-mz.124-21.bin' / 12.4-21 IOS Version.
>
> On Mon, May 4, 2009 at 10:45 AM, Ritter, Nicholas
> <[email protected]> wrote:
> >
> > Two things you can do:
> >
> > 1) When the wccp service breaks as you describe, do a "sh ip wccp" on
> > the router, make sure that "Number of Service Group Clients" and "Number
> > of Service Group Routers" are both no zero.
> >
> > 2)
> >
> > On the router:
> >
> > Debug ip wccp
> >
> >  - make sure your logging is set to debug level on the router
> >
> > What for the "Here I am" and "I see you" packets, which identifies that
> > the router and the squid box see each other.
> >
> >
> > One important thing, make sure you router is running the most recent
> > version of IOS...different revisions have WCCP problems come and go. I
> > have been running 12.4(15)T8 without problems for months.
> >
> > I was running various sub releases of 12.4 and had problems...but
> > 12.4(15)T8 seems stable.
> >
> > Nick
> >
> >
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]] On
> > Behalf Of Alex Montoanelli
> > Sent: Monday, May 04, 2009 7:13 AM
> > To: squid-users
> > Subject: [squid-users] CISCO + WCCP Stopping forward packets
> >
> > Hello all.
> >
> > I have a FreeBSD Box, running Squid Version 2.7.STABLE6-20090306, with
> > WCCP2 features on, with my Cisco Router 2811.
> >
> > It's running fine, but after a few hours, the traffic is not forwarded
> > from Cisco do Squid Box.
> >
> > I don't see any packet on gre0 and a 'show ip wccp' in Cisco, has not
> > increment counters from redirected packets.
> >
> > In my logs (cisco e squid) I could not get nothing;
> >
> > someone has been there?
> >
> > Regards
> >
> > Alex Montoanelli
> >
> >
>


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