iRule redirection using Data Group List not working

Hi,

I'm trying to put in place a redirection based on several sources IP host or network adresses. To do such a thing I thought using Data Group List and iRule.

Here is the configuration in place:

** VS:

- Name: Wildcard (0.0.0.0:0)
- Type: Standard
- Pool : Only one node (10.109.1.20:80)
- iRule : myIrule

** Data Group List :

- Name: _test_Data_Group_List
- Type: Address
- Records:
   (X) Type: Network
   (X) Address: 192.168.109.0
   (X) Mask: 255.255.255.0
   (X) Value: (I entered nothing here)

** iRule :

- Name: myIrule
- Code:
when CLIENT_ACCEPTED {

    log local0. "remote addr [IP::remote_addr]"

    log local0. "client addr [IP::client_addr]"

    if { [class match [IP::client_addr] equals _test_Data_Group_List] } { node 10.109.1.10 80 }

}

Basically what I want to demonstrate is that:

1/ Witout the iRule, flows are always load-balanced towards 10.109.1.20:80

1/ is working fine however when I enable the iRule for 2/, it does not produce the expected behavoir; ie. the traffic is still sent to 10.109.1.20:80 instead of being redirected to 10.109.1.10:80 !

In logs I can see no execution errors and that client IP matches the range I defined in the Data Group List:

May 16 09:54:57 local/tmm1 info tmm1[4866]: Rule myIrule : remote addr 192.168.109.1

May 16 09:54:57 local/tmm1 info tmm1[4866]: Rule myIrule : client addr 192.168.109.1

Could you please help me to point out where my mistake is? Thank you in advance for your very precious help!

With regards.

PS: I precise my source IP is 192.168.109.1 and I'm using LTM v10.2.4