Motorolla Surfboard modem
D-Link DI-604 Router
Cable ISP gives a dynamic ip address
I know that a dynamic ip address (WAN) should change from time to time, but mine doesn't. Some might say that keeping the same ip address is a good thing. Problably is, but i want to change mine none the less. This is not a serious problem that im trying to fix, it rather just me trying to figure it all out. So, any help on this would be appreciated.
I connect through my router using DHCP. I know that my router will automatically assign my individual pc's with dynamic ip addresses for my LAN. As far as my understand goes so far, this means that all my computers share the same WAN ip address that my ISP assigned me. My observations tell me that when i connect to the internet using one computer directly connected to the modem only, I see a WAN address(if i go to ip chicken for example). But, when i connect useing one computer through my router and go to ip chicken i see a different WAN ip address. Neither one of these addresses have been able to change. I have done the ipconfig/release...then....ipconfig/renew command and all it does is give the same ip address. I tried to reset the address through the routers config with the same result. I have also powered off the modem and router, again, with no sucess.
I would like to know why i get a different ip address when i am either "only modem connected" or "thorugh router connected" . And, is there a way to change the WAN ip address of either "connection type" I stated above?