Is it possible to share an Internet with only one switch? [cable modem] [dhcp]
Q: Just wondering whether it was possible for an Internet connection with only one cable modem and a switch to share. The switch would not NAT or DHCP, so I wonder why.
Re:Originally posted by: guy
Quick question though, if my ISP did issue multiple IP's and I was using a switch, would I just have to get my static IP's from them and assign each one to a different computer?Multiple Static IPs is usually an Expensive ordeal. Some ISPs give more then one dynamic IP. I.e. you log with one computer and it gets assigned with an external IP. You log with a second computer it would be assigned with an additional dynamic IP, and so on.
I usually suggest to people who have free multiple IPs to forgo the ?useless? temptation, and use only one IP with a Router. Using a Switch with Network based on external IPs is not secure and yields a much less flexible LAN.
However sometimes people have a situation that they do have a bona fide use of Multiple External IPs.
Under such a situation a person can get a SMC 7004VBR Router. This Router allows up to 10 computers on the DMZ (provided you have an external IP for each of them).
:sun:
Re:using Windows 2000 or XP ? Turn on Internet Connection Sharing, it'll do the DHCP/NAT function for you
Re:Originally posted by: guy
Originally posted by: guy
Oh ok. Well I'm currently using a Belkin router to share internet between 2-3 PC's. I was just curious if a switch could be used instead.Well the Belkin Router is a Combo unit of a Router and a Switch:thumbsup:. So in case that using a Switch makes you happy;), you should be Happy because you already using a Switch.:shocked:
:sun:
P.S. AnandTech – FAQ. Basic Options for Internet Connection Sharing (http://www.{$MySite}/guides/viewfaq.html?i=105)
Link to: AnandTech – FAQ. Hubs, routers, switches, DSL, LANs, WANs…? (http://www.{$MySite}/guides/viewfaq.html?i=48)
Well I'm using a switch with routing functions, not just a plain switch. But uh, sure, I'm happy.
Quick question though, if my ISP did issue multiple IP's and I was using a switch, would I just have to get my static IP's from them and assign each one to a different computer?
Re:The longer answer is yes, its possible with a good switch like a Cisco Catalyst 2950
Re:Originally posted by: guy
Oh ok. Well I'm currently using a Belkin router to share internet between 2-3 PC's. I was just curious if a switch could be used instead.Well the Belkin Router is a Combo unit of a Router and a Switch:thumbsup:. So in case that using a Switch makes you happy;), you should be Happy because you already using a Switch.:shocked:
:sun:
P.S. AnandTech – FAQ. Basic Options for Internet Connection Sharing (http://www.{$MySite}/guides/viewfaq.html?i=105)
Link to: AnandTech – FAQ. Hubs, routers, switches, DSL, LANs, WANs…? (http://www.{$MySite}/guides/viewfaq.html?i=48)
Re:Not the same way as a router, the router sits in front of your boxes, a switch will(assuming you can get multiple IP's) just allow your boxes to connect directly to the net with nothing in between them and your ISP(aside from the switch, which will transparent anyway).
So yes, it will work if you can get multiple IP's, but no, it won't work the same way a router will.
Re:Oh ok. Well I'm currently using a Belkin router to share internet between 2-3 PC's. I was just curious if a switch could be used instead.
Re:The short answer: it depends on your ISP.
Some ISP's will issue out multiple IP's to you. Some limit you to only one IP, thus forcing you to use a router. I'd say most only issue out one unless you pay for more.
The best way to find out is to either ask your ISP or hook up the switch and see.
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Tags: cable modem, dhcp