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Re: Re: WCCP configuration

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viveksnv@xxxxxx wrote:
Amos,

Thanks for your reply.

Sorry, we are not using TPROXY but cttporxy 2.6.20-2.0.6, iptables 1.3.8 and linux kernal 2.6.20.21.
Cisco IOS 2800 Ver 12.4 (13b)

WCCP+Tranparent proxy works good. Trproxy without wccp works well by not revealing the server ip and only displaying the client ip. But once the wccp is enabled with tproxy, the sever ip is revealed instead of the client ip.

Please scroll down below to check our previous mails.

Any suggestions please.

Other than checking your squid is built with --enable-linux-tproxy, none from me sorry.
cttproxy was obsolete and officially unsupported before I ever heard of it.

Amos



VK



-----Original Message-----
From: Amos Jeffries <squid3@xxxxxxxxxxxxx>
To: Ritter, Nicholas <Nicholas.Ritter@xxxxxxxxxxxxxx>
Cc: viveksnv@xxxxxx; squid-users@xxxxxxxxxxxxxxx
Sent: Sat, 10 Jan 2009 8:06 am
0ASubject: Re:  Re: WCCP configuration



Ritter, Nicholas wrote:
With TProxy, I think you need to use Squid3-HEAD to reliably fix your
issue....Amos would know for sure.

Nick


Yes. Squid-2.* has no support for TPROXY v4.1+
3.1.0.3 or later is needed. Which is at least an RC beta now, more
stable that pure 3.HEAD alpha code. Also the squid.conf and configure details have changed. http://wiki.squid-cache.org/Features/Tproxy4 Amos

________________________________


From: viveksnv@xxxxxx [mailto:viveksnv@xxxxxx]

Sent: Fri 1/9/2009 8:39 A
M
To: henrik@xxxxxxxxxxxxxxxxxxx

Cc: squid-users@xxxxxxxxxxxxxxx; squid3@xxxxxxxxxxxxx

Subject: Re: WCCP configuration




Hi,


Thanks for the reply. It did help us solve the problem.


But there is a new issue.


We have configured as squid+tproxy. The squid ip is not displayed and

only the client ip is displayed when we do the proxy test. But after

configuring wccp we find that the server ip is displayed in the proxy

test instead of the client ip.


We also find that the http request is pathetically slow.


squid.conf
=0
A

wccp2_service_info 80 protocol=tcp flags=src_ip_hash priority=240

ports=80

wccp2_service dynamic 90

wccp2_service_info 90 protocol=tcp flags=dst_ip_hash,ports_source

priority=240 ports=80


http_port 3128 transparent tproxy


iptable:

/usr/local/sbin/iptables -t tproxy -A PREROUTING -i wccp -p tcp -m
tcp
--dport 80 -j TPROXY --on-port 3128



We created a gre tunnel based on the router identifier.


wccp2_router xx.xx.xxx.xx (ip of router interface connected to squid

machine)


The following command is assigned at the router interface connected
=0
Ato
the lan.

ip wccp 80 redirect in

ip wccp 90 redirect out


Following command at the router interface connected to squid.

ip wccp redirect exclude in


Router : Cisco IOS Software, 2800 Software
(C2800NM-ADVIPSERVICESK9-M),
Version 12.4(13b)

Kernel : linux-2.6.20.21

IPtable : iptables-1.3.8

Os Ver : squid-2.7 Stable 5


#lsmod


ip_gre 19616 0

iptable_filter 11136 0

ipt_TPROXY 11136 1

ipt_REDIRECT 10624
0
xt_tcpudp 11904 1

reiserfs 235144 5

iptable_tproxy 23036 2 ipt_TPROXY

iptable_nat 15492 1 iptable_tproxy

ip_nat 24620 3
ipt_REDIRECT,iptable_tproxy,iptable_nat
ip_tables 25448 3

iptable_filter,iptable_tproxy,iptable_nat

x_tables 23560 5

ipt_TPROXY,ipt_REDIRECT,xt_tcpudp,iptable_nat,ip_tables

ip_conntrack 53400 3 iptable_tproxy,iptable_nat,ip_nat



The internet works, b
ut the browsing is dead slow. Temporarily we have
bypassed squid to browse the net.



Thanks

VK



-----Original Message-----

From: Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx>

To: viveksnv@xxxxxx

Cc: squid3@xxxxxxxxxxxxx; squid-users@xxxxxxxxxxxxxxx

Sent: Thu, 8 Jan 2009 12:05 am

Subject: Re: WCCP configuration



ons 2009-01-07 klockan 08:46 -0500 skrev viveksnv@xxxxxx:


wccp2_router xxx.xx.xxx.xxx

wccp_version 4

wccp2_forwarding_method 1

wccp2_return_method 1

wccp2_assignment_method 1

wccp2_service dynamic 8
0
wccp2_service_info 80 protocol=tcp flags=src_ip_hash priority=240

ports=80

wccp2_service dynamic 90

wccp2_service_info 90 protocol=tcp flags=dst_ip_hash,ports_source

priority=240 ports=80



Router Eth0 - connected to lan. Eth1 - connecte to squid.


Have you also configured

* A loopback address on the router, giving it a easily identified
router
ID


* the required GRE/WCCP tunnel interface on the Squid server


* disabled rp_filter on the above GRE/WCCP interface.


* And adjusted the REDIRECT/NAT rules to act on traffic=2
0received on the
GRE/WCCP interface configured above?



Service Identifier: web-cache

Number of Service Group Clients: 1

Number of Service Group Routers: 1

Total Packets s/w Redirected: 11336

Process: 0

Fast: 0

CEF: 11336


Looks fine.
=0
A

Is there any simple way of configuring WCCP. We have beating round

the

bush all day long to configure wccp.


WCCP as such is configured. But something is missing in the
interception
at the proxy. Most likely the GRE interface mentioned above.


Regards

Henrik









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--
Please be using Current Stable Squid 2.7.STABLE5 or 3.0.STABLE11 Current Beta Squid 3.1.0.3





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--
Please be using
  Current Stable Squid 2.7.STABLE5 or 3.0.STABLE11
  Current Beta Squid 3.1.0.3

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