route by destination IP address

[Abdelouahed Haitoute]

Hello,

I’m trying to route http-requests based on destination IP address. I’ve got the 
following configuration, but unfortunately its not working:

frontend proxy :3128
       acl host_destip req.hdr_ip(host) 192.168.0.1
       use_backend a if host_destip
       default_backend b

I’m expecting all http-traffic with destination IP address 192.168.0.1 to go to 
backend a, but its using the default_backend.

Any help is welcome.