[squid-users] WCCPv2 - only one service group redirecting

Hi,

I have the following simple network set up on the bench:

                                           Squid box
                                         x.x.11.90/30
                                                |
                                                |
                                              7206
Internet x.x.61.62/30 ----------- Router ------------ Client PC x.x.11.94/30

In the router wccp service group 99 redirects HTTP requests to squid and
service group 96 redirects the HTTP replies from the internet to squid.

I have the service groups set up in squid and the router verifies this by
displaying a service group client for both 96 and 99.

My problem is that only service group 96 (replies from the internet) is
performing any redirection. I think the gre tunnel is correctly set up as
when I perform a TCP dump at the squid box, I can see the HTTP replys from
the internet being passed to the squid box in a gre tunnel.

Below is the WCCP stats from the router:

show ip wccp
Global WCCP information:
    Router information:
                Router Identifier: x.x.61.93
                Protocol Version: 2.0

    Service Identifier: 96
                Number of Service Group Clients: 1
                Number of Service Group Routers: 1
                Total Packets s/w Redirected: 326
                  Process: 0
                  Fast: 0
                  CEF: 326
                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
                Total Bypassed Packets Received: 0

    Service Identifier: 99
                Number of Service Group Clients: 1
                Number of Service Group Routers: 1
 Total Packets s/w Redirected: 0
                  Process: 0
                  Fast: 0
                  CEF: 0
                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
                Total Bypassed Packets Received: 0

Also below is the router config:

Building configuration...

Current configuration : 1200 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
ip wccp check services all
ip wccp 96
ip wccp 99
!
!
ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface GigabitEthernet0/1
 description traffic from user network to internet
 ip address x.x.61.93 255.255.255.252
 ip wccp 99 redirect in
 load-interval 30
 duplex full
 speed 100
 media-type rj45
 no negotiation auto
!
interface GigabitEthernet0/2
 description Squid
 ip address x.x.61.89 255.255.255.252
 load-interval 30
 duplex full
 speed 100
 media-type rj45
 no negotiation auto
!
interface GigabitEthernet0/3
 description traffic from internet to user network
 ip address x.x.61.61 255.255.255.252
 ip wccp 96 redirect in
 duplex full
 speed 100
 media-type rj45
 no negotiation auto
!
interface ATM1/0
 no ip address
 shutdown
 no atm ilmi-keepalive
!
ip route 0.0.0.0 0.0.0.0 x.x.60.1
!
no ip http server
no ip http secure-server
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
gatekeeper
 shutdown
!
!
line con 0
 stopbits 1
line aux 0
line vty 0 4
!
!
end

Could anyone suggest some reasons why only the the HTTP reply traffic from
the internet (service group 96) is being redirected?

Regards,

Stuart

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