Comments for How can I use two ip addresses from one cable modem?

Comment from Nelzihno on 2008-11-06

2008-11-06T13:45:26Z

Hi,

I have one broadband line into my property, yet my ISP has allocated 5 IP's.

I want to set up SBS 2008 in a test environment to get to grips with it before rolling it out to a client. To test exchange i need use 2 external IP's but i only have one connection, and my router has only one WAN port.

Is it possible to configure a draytek 2600G to use 2 external IP's through one phyical connection?

There are various options such as WAN alias addresses, but i am unsure how to link the external IP's to the correct machine? Do i create VLAN's and set port forwarding?

Any help would be greatly recieved!!

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Comment from Patricia Boston on 2008-11-05

2008-11-06T00:43:23Z

I put two computers on the same modem now i was wanting to information to the other so how ?

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Comment from mugz on 2008-10-02

2008-10-03T00:26:26Z

i have a DSL connection and the ISP gave us 7IPs so how can i possibly use all of those IPs and i'm using D-Link router..

please help with these

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Comment from Louis KIm on 2008-03-07

2008-03-07T15:40:22Z

Leo,

I have client software for car washes that require that I use multiple IP addresses, how do I setup my router to use a single cable modem with two separate IP addresses?

I'm using a netgear FVS318.

I alos have 2 connections for credit card processing, 1 for a computer, and 1 for my CCTV system.

Please help, COX is not help, and the company who makes my car wash equipment doesn't know how to port forward, so this is way beyond them!

Thanks

Lou

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Comment from steven on 2007-11-26

2007-11-26T19:41:58Z

can i change my modem smartax to a different router

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Comment from Greg Thurmon on 2007-01-30

2007-01-30T13:54:32Z

Leo, I just read your comments on 'How can I use two ip addresses from one cable modem?' and I have a question. First the problem: two divisions in our company who were completely independent, seperate physical locations, domain controller, webservers... (except for VPN), are moving into our new building together. The long term goal is to have one domain and one network, but my short term goal is to get people back to work. I need to maintane two domain controllers each on a seperate subnet behind one cable modem with 5 static ip address assigned to it. Your solution of a hub sounds easy enough. Is that the best way to share the internet connection for now or is there a better way?
Thanks a lot for your advice.
Greg

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Comment from Leo Notenboom on 2006-12-23

2006-12-23T23:11:05Z

No. If they can only give you 64kbps then you can only get 64kbps no matter how many IPs you have.

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Comment from ijlal on 2006-12-23

2006-12-23T22:40:19Z

Hello I have problem with my ISP I need Band Width 512kbps Static IP but he cant provide me. they can give me Band Width upto 64kbps Eight different Static IPs. I wanted to know is there any Software or Device from which i can get help to make by my self a Static IP of 512kbps. Please answer me in detail so i can understand

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Comment from Marshall Leitem on 2006-11-21

2006-11-21T23:54:06Z

The reason why someone would want to do this is to get 2 xbox's on xbox live at the same time in the same household.

Since there doesn't appear to be a way to get two of them to sign in at the same time on the same connection due to port issues.

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Comment from Chris on 2006-11-10

2006-11-10T17:12:48Z

Can this also be done with a dsl modem? I know that with a dsl line you usually use PPoE to connect. Our dsl provider has given us 6 ip public ip addresses to use and due to having several servers running we would like to issue each of them a public ip.

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Comment from Sean on 2006-09-14

2006-09-15T02:00:12Z

I own a duplex, both myself and my tenant are running able modems... other than purchasing a router with two WAN ports to do load balancing, is there a way to amalgate the connections to double my theoretical speed? For instance, and I could probably just spend an afternoon testing this, could I take oen of my spare switches, run both cable modems into it, and channel that into the WAN port of a single router, from there hit another switch, and allow our networks to merge? I can VLAN if I feel the need for security, but I really don't... During the week I use a lot of bandwidth on media applications while they use very little for email and the like... While I'm gone on weekend hikes they play WoW and other online games, so sharing the bandwidth would work out well...

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Comment from Michael on 2006-08-19

2006-08-19T17:45:29Z

on your comment, How can I use two ip addresses from one cable modem, i want to ask if i can use switch instead of hub.

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Comment from Ross Musselman on 2006-03-09

2006-03-10T05:40:46Z

I have a high-speed line coming in to my home with DHCP for my initial wireless router (D-Link). DHCP is running on that router. Behind that, I would like to place another wireless router that would serve a separate section of the house (Netgear). I purchased a second router because it was cheaper than an access point. Did I make the wrong decision?

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Comment from Roger on 2006-02-15

2006-02-15T14:30:19Z

My router alows me 5 ip addresse and I nee 10. Howdo I make that happen.

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Comment from Alex on 2006-01-10

2006-01-10T22:18:56Z

Hi,
I need to do this, but im using two dynamic ip addresses, I was woundering if insted of using a hub, could you use a switch. I have a switch I am not useing. I want this to seperate my one xbox from the other because I get network errors with them on the same network. Thanks for any help!

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Comment from Amy on 2005-12-01

2005-12-02T05:54:46Z

Hello,
I am trying to set-up 2 ips in my house. My provider gives me 3 ip addresses, which right now I am only using one of course. My question is do I need a separate router (2) for each ip address? Right now I have a wireless route that connects two computers, xbox, 3 playstations. But I need to take advantage of at least one more of the ip addresses for a different computer (this computer is for a room-mate which needs a different ip address). So do I follow the same directions above by getting another router and hub?

Thanks, Amy

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Comment from Jason on 2005-10-13

2005-10-13T18:20:12Z

simple fix to get 2 ip's on 1 line, why couldn't i think of that...you're the man!

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Comment from panmiszcz on 2005-09-30

2005-09-30T11:21:43Z

i have ip, what i make detect how many computers working on this ip? hmmm?

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Comment from panmsizcz on 2005-09-30

2005-09-30T11:19:16Z

What connecting one computers on two ip by one cable(wi-fi site)

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Comment from Jordan on 2005-08-15

2005-08-15T18:08:10Z

A special case where you might WANT something like described in the article;

- you have a home network behind one router (using your first IP address)
- you have a server with your second IP address

So now, your server is now 'isolated' from your home network; which should make your home network more secure (since potential hackers won't be able to get to your 'home network' THROUGH your now isolated sever)

Another case might be if you want to seperate two groups of people (so that each group is 'isolated' from each other) ie. So Group A can't get onto Group B's network and visa versa.

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Comment from Bob on 2005-04-08

2005-04-08T15:36:28Z

Some cable ISPs configure your cable modem with only 1 IP address by default and charge a few dollars a month for extra addresses. If your ISP only provides you 1 address, a router would be required to share that address between your computers.

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A comment on: How can I use two ip addresses from one cable modem?

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