Re: [squid-users] Re: WCCP configuration

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.

VK

-----Original Message-----
From: Amos Jeffries <squid3_at_treenet.co.nz>
To: Ritter, Nicholas <Nicholas.Ritter_at_americantv.com>
Cc: viveksnv_at_aol.in; squid-users_at_squid-cache.org
Sent: Sat, 10 Jan 2009 8:06 am
 0ASubject: Re: [squid-users] 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%c2%a0
 

Amos 
 

>
> ________________________________ 

>
> From: viveksnv_at_aol.in [mailto:viveksnv_at_aol.in] 

> Sent: Fri 1/9/2009 8:39 A
 M 

> To: henrik_at_henriknordstrom.net 

> Cc: squid-users_at_squid-cache.org; squid3_at_treenet.co.nz 

> Subject: [squid-users] 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_at_henriknordstrom.net> 

> To: viveksnv_at_aol.in 

> Cc: squid3_at_treenet.co.nz; squid-users_at_squid-cache.org 

> Sent: Thu, 8 Jan 2009 12:05 am 

> Subject: Re: WCCP configuration 

>
>
> ons 2009-01-07 klockan 08:46 -0500 skrev viveksnv_at_aol.in: 

>
>> 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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