Solved Maintain my IP Address

November 1, 2013 at 06:35:09
Specs: Windows 7
I have an embedded web server which is located in a remote location.
It is being share with 3 other devices on a Linksys router.

I am concerned that in the event there is a power down/reset/new lease with
the router, that there is a possibility that I can loose the embedded web server's
current IP address.

How can I secure that the IP address for the embedded web server always, stay
the same. By the way, I am using port forwarding on the router to access the embedded
web server. I don't care about the other devices IP address and what the router might assign
to them.

Also the embedded web server does have the ability to be set dynamic or static.

Thank you,
Neil P


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✔ Best Answer
November 1, 2013 at 07:40:49
NeilP05: Can you explain how this will work on my scenario?
Instead of going to 'http://<someIP>' you would go to 'http://<someName>'

Setup depends on the service and it depends on the router. I use DynDNS; it's free.

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#1
November 1, 2013 at 07:03:44
If you're worried about the private IP of the web server, then assign it a static IP.
If you're worried about the public IP of the Linksys, then talk to your ISP. They usually can assign you a static IP for a fee.

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#2
November 1, 2013 at 07:15:47
If the router is receiving a dynamic IP address from the ISP there is no way to guarantee it will never change. If you used a UPS to maintain power to the router this would eliminate that one issue but there are others you have no control over. A dynamic IP is subject to change and you cannot prevent it.

But do you really need a fixed IP? Using a dynamic DNS service would maintain access to the server even if the IP address changed.

If you really need a fixed IP address you will need to obtain such from your ISP. There would of course be an extra charge for this.


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#3
November 1, 2013 at 07:29:39
LMiller7 -

How does this work?

"But do you really need a fixed IP? Using a dynamic DNS service would maintain access to the server even if the IP address changed."

Can you explain how this will work on my scenario? Does the above guarantee, I can always access the embedded web server?
.


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Related Solutions

#4
November 1, 2013 at 07:40:49
✔ Best Answer
NeilP05: Can you explain how this will work on my scenario?
Instead of going to 'http://<someIP>' you would go to 'http://<someName>'

Setup depends on the service and it depends on the router. I use DynDNS; it's free.

How To Ask Questions The Smart Way


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#5
November 1, 2013 at 08:15:14
Razor2.3 -

Very interesting: Thank you! I think I still will need a static WAN IP to the network or do I?

Regards,
Neil


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#6
November 1, 2013 at 08:21:45
Not with dynamic DNS. The router reports its new IP to DNS, The DNS record itself is cached for 60 seconds, so everything should go by the new IP within a minute of the change.

EDIT: This is the configuration that depends on the router I was talking about. Some (cheaper) routers don't have DDNS support, so check to make sure yours does before investing too much effort.

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message edited by Razor2.3


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#7
November 1, 2013 at 08:46:00
You don't need the router to support dynamic dns . You can register and use dyndns.com to do the same. It just requires a client to run on a pc/server so dyndns gets updated.

Looks like dyndns is no longer free. No-ip appears to still be free
http://www.noip.com/free/

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's


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#8
November 1, 2013 at 09:06:13
How much is a static IP anyways? I know it must depend on the ISP, but just to get an idea?


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#9
November 1, 2013 at 09:48:58
Depends on the ISP. I've seen $5 a month, I've seen, "it requires a business account for $250 a month."

wanderer: Looks like dyndns is no longer free.
Well, that sucks. At least I was grandfathered in to the old free system.

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#10
November 1, 2013 at 09:56:27
Thank you,

Razor2.3, Wanderer, and LMiller7


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