I have cisco 1601 router. this router has 10Base T RJ45 connection. I\nunderstand that this connection is to connect the router with for\nexample a switch which in its turn will connect 4 computers for\nexample. Now Where should I connect the internet connection.. the one\nthat comes from the ISP (for example, the cable modem)?? In the back\nof the router there is a place where I can insert a WAN card?? I do\nnot have the card but I think the card is to be connected to the\ninternet?? Where I can get that card and how much does it cost?