[ccna-exams] Confusing between the NAT and Internet Connection Sharing
Hi Internet connection sharing is an Microsoft product for sharing one internet connection with more than one PC on a LAN. It uses NAT and DHCP to work, according to the definition I found. NAT is a protocol for translating internal private addresses to public addresses, or in the instance of PAT to one public address. Internet connection sharing is ok for things like a peer to peer network, but if you are in a server environment, or you need reliability, implementing NAT on a router is the best option. Also the other thing to remember is the computer that is doing the internet connection sharing within windows had to be powered on for the internet to be available for other PCs. Admittedly the only time I have used internet connection sharing was about 8 years ago between my 2 home PCs. On one, you run the internet connection sharing utility under windows, and it prompts you to make a disk to use for configuring the 2nd PC. I didn’t have to have 2 network cards in one PC, or buy a router. It is all done within the windows utility.
Most ADSL modems have NAT here in NZ, if its a home network you’re talking about. So interent connection sharing isn’t needed. Just a switch plugged into adsl modem and then PCs into that. NAT and DHCP is provided by the modem for sharing of the internet connection. Using a cable modem would need a router for NAT to be implemented.
Hope this helps JD
Category: ccie
