Multiple IP's

leehill · Post by **leehill** » Fri Nov 07, 2003 6:08 am

Multiple IP's
Hello

A friend of mine (really) has just signed up for Broadband and part of the package included 5 extra IP addresses.

what would be the advantage of having 5 extra IP's, can someone suggest 5 uses for these extra IP's

Cheers

Lee

Post by **YeOldeStonecat** » Fri Nov 07, 2003 7:14 am

Many business class DSL packages now come that way. That gives you options of having several servers with public IP's to run various public services, if you wish.....and not have to use NAT. Examples being Mail/SMTP, Web, Terminal Server, VPN server, etc. Although I'm a fan of using NAT....just 1 IP does the job for most of my setups.

I killed your duplicate thread in the gen forum. Welcome to Speedguide..but please keep posts to appropriate forum, no need for multiple posts.

CM Weaver · Post by **CM Weaver** » Sat Nov 08, 2003 1:47 am

5 IP's also come in handy if you have multiple users at your location attempting connections to a game server that only allows 1 player per IP.

If you're behind a NAT router though it's generally not possible unless it's one the allows you to bind multiple WAN IP's to a static internal NAT'd address. You can also accomplish this if you have a BSD box that is your router/gateway.

If you don't have a router you can use a switch instead, but be warned that you lose some protection that is granted by a NAT'd address. Using a switch will put each computer connected wide open to the internet and I would highly recommend a software firewall on each PC.

rXdragoN · Post by **rXdragoN** » Sun Nov 09, 2003 6:30 pm

Yes, that's exactly why I would want a second IP. I'm just wondering if cable users get multiple IPs when signing up. Probably just certain providers and certain package that you get offers you extra IPs right? Well, I was wondering if Rogers Hi-Speed offers multiple ips. Is there some other way to obtain an extra IP to play games on the same server with both my computers? Thanks in advance.

The Dude · Post by **The Dude** » Mon Nov 10, 2003 8:21 am

I'm on cable "Eastlink residential service". They charge extra for each extra IP addy, $5 a month I think. I have 3 PC's connected behind a router. Works well, lasts a long time.

qball15j · Post by **qball15j** » Mon Nov 10, 2003 3:41 pm

Originally posted by rXdragoN
Yes, that's exactly why I would want a second IP. I'm just wondering if cable users get multiple IPs when signing up. Probably just certain providers and certain package that you get offers you extra IPs right? Well, I was wondering if Rogers Hi-Speed offers multiple ips. Is there some other way to obtain an extra IP to play games on the same server with both my computers? Thanks in advance.

Yes, that's currect.
I have Comcast HSI with a Pro account that includes 5 IPs. The only thing I use them for is server testing or router testing.

rXdragoN · Post by **rXdragoN** » Mon Nov 10, 2003 5:22 pm

Well, my ISP mentions nothing about recieving additional ISPs so I guess that means I can't play games online on the same server with both my computers -_-

Doesn't DHCP assign a different IP on each computer so I could play online together?

The Dude · Post by **The Dude** » Mon Nov 10, 2003 7:10 pm

Originally posted by rXdragoN
Well, my ISP mentions nothing about recieving additional ISPs so I guess that means I can't play games online on the same server with both my computers -_-

Doesn't DHCP assign a different IP on each computer so I could play online together?

Yes and no. If your ISP's DHCP server will give you more than 1 WAN IP you could play online together. If you use a router, it's DHCP (NAT) will give you more than 1 LAN IP, but you only have 1 WAN IP to play with. Only one PC could connect to the game server.

rXdragoN · Post by **rXdragoN** » Tue Nov 11, 2003 5:06 pm

Right, I see what you mean..
Someone told me I could be playing on some game server and find the port by looking at the log of the router and connect my second computer on the DMZ and both can go into the game. Is that true?

I don't know how to come about doing that because I don't have my second computer or router yet but soon I'll have to tackle this situation so I thought I'd get a heads up on it. Thanks..

Norm · Post by **Norm** » Tue Nov 11, 2003 6:15 pm

I'm on cogeco residential service, and they allow 3 IP's now. There was a time we had to pay extra, but they now allow 3.

When we had to pay extra, I could still pull the extra IP's and was never asked about it. Even if you have to pay extra, the price is low enough to go with it. Like was mentioned, about 5$ per month per IP.

Again, if using a hub, or switch, you'll want firewall software on each PC.

Doesn't hurt to phone and ask @Rogers what their policy is.

The Dude · Post by **The Dude** » Tue Nov 11, 2003 8:02 pm

Can't help you with the port forwarding. I think I know how to do it on my router, but I've never used it. Same with the DMZ, never needed to use it.

Post by **YeOldeStonecat** » Tue Nov 11, 2003 8:19 pm

Port forwarding or DMZ will do nothing about lettings more than 1 computer play. Just about all online multiplayer games will fully function without any port forwarding. You only really use port forwarding when when running a server, and you wish to be made available to the public.

Just about all modern online games support multiple clients per IP address. Old games like Quake 1, and Quake 2...they would not allow more than 1 client per IP address. But they fixed that with Quake 3. Other modern games, like UT, UT2K3, bf'42, etc...they all fully support multiple clients per IP.

Even though the network behind a router can have up to 253 LAN IP addresses....public services looking in, like games, will only see the WAN IP address of the router that the client is coming from. It does not see the internal LAN IP's. So if you have 3x peeps playing bf'42 from the same house, the server will see them as the same IP address.

zxc47 · Post by **zxc47** » Fri Nov 14, 2003 8:46 am

I am on cable >Roadrunner<I have two IP's and it cost me $9.00 more a month.To use the the two Ip's I have to run a switch between the modem and the router.I also run a two wan port router.With this set up I can play on line game on both Ip' s at the same time or two differant server at the same time .Even with a big load I can't tell if the other computer is even on line.