You can configure your Wiznet wiz110sr device using this Python library.
Following example would change ip address setting on first device in your network
import time
import wiz110sr
finder = wiz110sr.DeviceFinder()
finder.search()
time.sleep(1)
device_list = finder.get_device_list()
if device_list:
print "Found devices:", device_list
my_device = device_list[0]
my_device.set_ip_address("10.0.0.2")
my_device.save_config()
else:
print "No wiz110sr device was found on current network"