[Nicosia]

so im trying to port foward and ive managed to do the port i want 113 for mirc but everytime i connect to the wireless with lap top after its been off i get a new ip and in the settings i have to put which ip to port foward so everytime i open the lap top i have to check my new ip and change it. is there anyway to just port foward all ips that connect? the port 113?