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Help, wccp on ubuntu

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Hi,

I have problem to running up wccp on my squid.
I follow the guide from
http://wiki.squid-cache.org/SquidFaq/InterceptionProxy and
http://www.digitalnerds.net/linux/transparent-squid-with-wccp/

This is my system.

i use ubuntu 8.04 64bit.
squid 2.7stable6 (compile by myselft).

root@box:~# squid -v
Squid Cache: Version 2.7.STABLE6
configure options: '--sysconfdir=/etc/squid' '--prefix=/usr' '--enable-async-io' '--enable-removal-policies=lru,heap' '--disable-delay-pools' '--enable-kill-parent-hack' '--enable-snmp' '--enable-default-err-language=English' '--enable-err-languages=English' '--enable-cache-digests' '--enable-linux-netfilter' '--enable-gnuregex' '--enable-wccp' '--disable-auth'


in squid.conf, i configure http_port 3128 transparent and enable the wccp.


ifconfig wccp0
wccp0 Link encap:UNSPEC HWaddr 77-5C-40-03-00-00-F9-A1-00-00-00-00-00-00-00-00
          inet addr:1.2.3.4  P-t-P:1.2.3.4  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP  MTU:1476  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@box:~# iptunnel
gre0: gre/ip  remote any  local any  ttl inherit  nopmtudisc
wccp0: gre/ip remote 110.92.64.255 local 119.92.64.3 dev eth0 ttl inherit

root@box:~# cat /proc/sys/net/ipv4/ip_forward
1


root@box:~# sysctl -a | grep rp_filter
error: permission denied on key 'net.ipv4.route.flush'
net.ipv4.conf.lo.rp_filter = 0
net.ipv4.conf.lo.arp_filter = 0
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.all.arp_filter = 0
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.default.arp_filter = 0
net.ipv4.conf.eth0.rp_filter = 0
net.ipv4.conf.eth0.arp_filter = 0
net.ipv4.conf.eth1.rp_filter = 0
net.ipv4.conf.eth1.arp_filter = 0
net.ipv4.conf.gre0.rp_filter = 0
net.ipv4.conf.gre0.arp_filter = 0
net.ipv4.conf.wccp0.rp_filter = 0
net.ipv4.conf.wccp0.arp_filter = 0
error: permission denied on key 'net.ipv6.route.flush'

From my cisco, i can see my squid can comunicate wccp with cisco.
RTR-INT-2811#sh ip wccp
Global WCCP information:
    Router information:
        Router Identifier:                   110.92.64.255
        Protocol Version:                    1.0

    Service Identifier: web-cache
        Number of Service Group Clients:     1
        Number of Service Group Routers:     1
        Total Packets s/w Redirected:        89
          Process:                           0
          Fast:                              0
          CEF:                               89
        Redirect access-list:                -none-
        Total Packets Denied Redirect:       0
        Total Packets Unassigned:            0
        Group access-list:                   -none-
        Total Messages Denied to Group:      0
        Total Authentication failures:       0

terminal monitor
debug ip wccp even
*Jun 8 03:30:51.423: WCCP-PKT: Sending I_See_You packet to 110.92.64.3 w/ rcvd_id 00000296 *Jun 8 03:31:01.427: WCCP-EVNT: Built I_See_You msg body w/1 usable web caches, change # 0000000B
*Jun  8 03:31:01.427: %WCCP-5-CACHEFOUND: Web Cache 110.92.64.3 acquired
*Jun 8 03:31:01.427: WCCP-PKT: Received valid Here_I_Am packet from 110.92.64.3 w/rcvd_id 00000296 *Jun 8 03:31:01.427: WCCP-PKT: Sending I_See_You packet to 110.92.64.3 w/ rcvd_id 00000297 *Jun 8 03:31:01.427: WCCP-EVNT: Built I_See_You msg body w/1 usable web caches, change # 0000000C *Jun 8 03:31:01.427: WCCP-PKT: Received valid Assign_Buckets packet from 110.92.64.3 w/rcvd_id 00000297 *Jun 8 03:31:11.431: WCCP-PKT: Received valid Here_I_Am packet from 110.92.64.3 w/rcvd_id 00000297 *Jun 8 03:31:11.431: WCCP-PKT: Sending I_See_You packet to 110.92.64.3 w/ rcvd_id 00000298


When i tcpdump on interface wccp0, i can see the paket flow from cisco to server.
root@box:~# tcpdump -i wccp0 -n
listening on wccp0, link-type LINUX_SLL (Linux cooked), capture size 96 bytes 10:34:42.461441 IP 110.92.65.5.41038 > 202.158.66.92.80: S 842039074:842039074(0) win 5840 <mss 1380,sackOK,timestamp 240146036 0,nop,wscale 7> 10:34:45.453372 IP 110.92.65.5.41038 > 202.158.66.92.80: S 842039074:842039074(0) win 5840 <mss 1380,sackOK,timestamp 240146336 0,nop,wscale 7> 10:34:51.453431 IP 110.92.65.5.41038 > 202.158.66.92.80: S 842039074:842039074(0) win 5840 <mss 1380,sackOK,timestamp 240146936 0,nop,wscale 7> 10:35:03.453562 IP 110.92.65.5.41038 > 202.158.66.92.80: S 842039074:842039074(0) win 5840 <mss 1380,sackOK,timestamp 240148136 0,nop,wscale 7> 10:35:27.453852 IP 110.92.65.5.41038 > 202.158.66.92.80: S 3717798278:3717798278(0) win 5840 <mss 1380,sackOK,timestamp 240150536 0,nop,wscale 7>



and i can see the counter incrase in iptables.
root@box:~# iptables -t nat -vnL
Chain PREROUTING (policy ACCEPT 34 packets, 2784 bytes)
pkts bytes target prot opt in out source destination 5 300 REDIRECT tcp -- wccp0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 redir ports 3128


the problem is, the squid doesn't work.
looks like the paket from redirect is disapper and never touch the squid port (3128)

please help, what i should do.

regards

ketua@kampung

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