iRule to set country code for IP

Perhaps the safest option would be expanding your IF condition with an OR statement (using the [IP::client_addr] function, as recommended by Michael J)

when HTTP_REQUEST {


  if { ([whereis [IP::client_addr]] == "CN") || ([IP::client_addr] == "Your.IP.Address" ) } {
    do some stuff...
  }
}

Alternatively, you should be able to set the system-provided 'whereis' variable to your own value. Have not tested, please use with caution

when HTTP_REQUEST {


  if { [IP::client_addr] == "Your.IP.Address"} {
    set [whereis [IP::client_addr]] "CN"
    For verification, tail /var/log/ltm as you implement the changes
    log local0. "IP: [IP::client_addr]; Country Code: [whereis [IP::client_addr]]"
  }

   Geo-location iRule continues...

}