GTM ignores two conditions in a irule

Hi there,

 

I have requirement to combine two following conditions in a irule at GTM. The GTM accepted the rule but do not execute the logic.

 

The DNS request should return pool test1's member if the request is from 10.0.0.0/8 and virtual server 10.10.10.8 is up. Even these two conditions are met, but the GTM still does not send test1's IP. No errors at GTM.

 

when DNS_REQUEST {

 

if {{[LB::status vs 10.10.10.8 80] eq "up"} and [IP::addr [ IP::client_addr]/8 equals 10.0.0.0]} {pool test1}

 

}

 

Or:

 

when DNS_REQUEST {

 

if {{[LB::status vs 10.10.10.8 80] eq "up"} && [IP::addr [ IP::client_addr]/8 equals 10.0.0.0]} {pool test1}

 

}

 

Did I do something wrong with about irule at GTM (version 9.3)?

 

Thanks,

 

Hong