App Does not read assigned ip address when run on xen hypervisor

[ghost]

I compiled this app for xen hypervisor and it runs well but unfortunately I can't be able to perform any requests on it as it does not seem to take up the IP address I assign to it.

Here is a copy of my xen configuration file

name          = "httpreply"
vcpus         = "1"
memory        = "64"
kernel        = "./build/app-httpreply_xen-x86_64"
vif	      = [ 'bridge=virbr0,mac=aa:bb:cc:dd:ee:ff,ip=172.44.0.2/24,gatewaydev=en0' ]

How can I make the kernel take this IP so I can perform the wget successfully?