Internet static/dynamic IP question

Canon RF 24-70mm f/2.8 L IS

12/18/2010 10:48:36 PM · #1

I have Charter internet. I have some IP cams hooked up. They say I have a dynamic IP. I checked it today for hours....it never changed. However, when I had to move the modem and turn it off....when I turned it back on it was a totally different IP.

Will my IP remain the same as long as I don't reset the modem or release the IP?

Thanks...

kirbic

Canon EOS R5

12/18/2010 10:57:20 PM · #2

It usually will, but there's no guarantee. If the connection gets reset for whatever reason, the IP address will get refreshed. With some services that might not happen for many weeks. It could just as well happen more than once a day, though.

Neil

Fujifilm X-T30

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

12/18/2010 10:58:55 PM · #3

Probably--but they could always force a reset on their end, not to make you change, but for other reasons. So it's not guaranteed.

There are dynamic DNS services that let you map to a fixed IP, and they follow your changing IP address, e.g., //www.dynip.com/

ETA: Ah, beat by Fritz!

Message edited by author 2010-12-18 22:59:23.

PGerst

Canon EOS-20D

12/18/2010 10:59:33 PM · #4

It will most likely remain the same for a while, but there is a lease expiration on it. I believe I have gone a month without ever seeing an IP address change. It is possible you will hold onto the IP address for a while, but eventually, it will change.

Most likely even if you set up an account with Charter for hosting capability using your own server, you could still get a dynamic IP address but your server would be registered in DNS.

giantmike

Canon EOS R6

Canon EF 100mm f/2.8L Macro IS USM

12/18/2010 10:59:43 PM · #5

There are services that will direct a URL to a dynamic IP. I've never tried it, so I have no idea how it works. A quick search found some places like this: //www.no-ip.com/ (not an endorsement, as I have never actually used that company before for anything, it was just first in my search).

Edit: Double beat to the punch!

Message edited by author 2010-12-18 23:00:12.

Pentax DA 16-45mm f/4.0 ED AL AF

12/18/2010 11:06:30 PM · #6

Thanks...

I have IP cameras hooked up. Not a really big deal if the IP changes but would be an inconvience ! However, if the IP changes even several times a week...that would stink for me!

I noticed that the lease said an "hour" at first...and I didn't see a change later.

It'll be interesting to see how long it lasts. I'll let you know.

pixelpig

Sony Alpha a55

Sony DT 1.8/50mm SAM

12/19/2010 12:12:25 AM · #7

I wonder, with IPv6 coming on, if that might affect how long you keep your dynamic IP?

alohadave

Pentax K-5

12/19/2010 10:10:57 AM · #8

Originally posted by pixelpig:

I wonder, with IPv6 coming on, if that might affect how long you keep your dynamic IP?

It shouldn't affect anything. The length of the IP reservation has nothing to do with the pool of available addresses. It's to allow addresses to time out if a customer is off the net for a specified time. Longer leases mean that it will take longer to time out, shorter leases mean they'll time out faster.

In general, if there is no disconnect, the address will renew and not change. Always on routers make sure that this happens in most cases. In the days when service came to one computer, turning off your computer would release the address.

12/19/2010 11:23:36 PM · #9

Ok...been a day and a half and the ip stayed the same.

I'm know that if the power goes out and back on there will be an IP change....Charter says they only offer static ip to business'. Does anyone know if there is anything I can do to keep the ip the same if the modem is turned off and on for a short time?

Tamron SP 24-70mm f/2.8 Di VC USD Canon Mount

12/20/2010 11:10:29 AM · #10

Bump with another question:

Let's says the lease "expires" in 5 days. The power goes off on day 3 for an hour....will the server attempt to give me the "same" IP back for the remaining two days or will it give me a whole new ip?

Mike

Canon EOS-5D Mark II

12/20/2010 11:21:17 AM · #11

i would think that setting up some sort of vpn and setting your camera to a local IP would be your best bet.

PGerst

Canon EOS-20D

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

12/20/2010 11:26:11 AM · #12

Every provider is different, but just because the lease expires, doesn't necessarily mean you will automatically get a new IP. It is very possible that you could retain that same IP for a month or more.

Even if the power goes out, you could still get the same IP, just depends on how things are refreshed back at the central station.

Just to clarify:

A static (or fixed) IP address is locked to the machine address code (MAC address) of your modem.

A dynamic IP address is temporarily assigned to the MAC address of your modem. It doesn't HAVE to change, but it CAN change.

Originally posted by kenskid:

Message edited by author 2010-12-20 11:28:41.

12/20/2010 11:56:14 AM · #13

Originally posted by kenskid:

I have IP cameras hooked up. Not a really big deal if the IP changes but would be an inconvience ! However, if the IP changes even several times a week...that would stink for me!

I also have multiple IP cameras hooked up. My ISP charges extra for a static IP address so I am stuck with dynamic IP which changes either weekly or each time I reset my ADSL router. I have setup static addresses on my home LAN for viewing cameras at home. For viewing over the Internet I am using a free service called dyndns.org and port range forwarding feature of the router. The dyndns.org gets the new IP address each time it changes and maps it to a domain name. This works great and for one domain it is free.

If you prefer a simpler solution ask you ISP if they can set you up with a static IP.

12/20/2010 12:03:41 PM · #14

Are you kidding !? This dyndns sounds like a solution for me.

Tell me if I'm correct...

I "forward" my current IP or cam ip to dyndns.org and somehow if my ip changes because of a modem reboot or power failure, dyndns picks it back up and I can see the cam from a remote even if I don't know the current IP?

Originally posted by marnet:

Originally posted by kenskid:

I have IP cameras hooked up. Not a really big deal if the IP changes but would be an inconvience ! However, if the IP changes even several times a week...that would stink for me!

I also have multiple IP cameras hooked up. My ISP charges extra for a static IP address so I am stuck with dynamic IP which changes either weekly or each time I reset my ADSL router. I have setup static addresses on my home LAN for viewing cameras at home. For viewing over the Internet I am using a free service called dyndns.org and port range forwarding feature of the router. The dyndns.org gets the new IP address each time it changes and maps it to a domain name. This works great and for one domain it is free.

If you prefer a simpler solution ask you ISP if they can set you up with a static IP.

12/20/2010 12:15:39 PM · #15

Originally posted by kenskid:

What you forward is a port on your router to a static IP address on your LAN. Your router needs to support DDNS Service. What model of the router and model of IP cameras do you have? I have Linksys router and cameras.

12/20/2010 12:25:10 PM · #16

The router is Linksys and the cams are Trendnet TV-IP422W.

Originally posted by marnet:

Originally posted by kenskid:
Are you kidding !? This dyndns sounds like a solution for me.

Tell me if I'm correct...

I "forward" my current IP or cam ip to dyndns.org and somehow if my ip changes because of a modem reboot or power failure, dyndns picks it back up and I can see the cam from a remote even if I don't know the current IP?

What you forward is a port on your router to a static IP address on your LAN. Your router needs to support DDNS Service. What model of the router and model of IP cameras do you have? I have Linksys router and cameras.

12/20/2010 12:28:33 PM · #17

So I make my router have a static IP...which I think I did already. The cam also is on a static IP of it's own....

....now what?

12/20/2010 01:05:33 PM · #18

Got PM...thanks will do..

12/20/2010 02:57:10 PM · #19

Originally posted by kenskid:

The router is Linksys and the cams are Trendnet TV-IP422W.

Here is the article showing the setup for my camera:
//www6.nohold.net/Cisco2/ukp.aspx?pid=80&login=1&app=search&vw=1&articleid=16337&donelr=1

I found this for your cameras:
//www.trendnet.com/kb/kbp_viewquestion.asp?ToDo=view&questId=1948&catId=552

For DDNS on Linksys router see:
//www6.nohold.net/Cisco2/ukp.aspx?pid=80&login=1&app=search&vw=1&articleid=17246&donelr=1

You will need to get an account with //www.dyndns.com/:
pick a subdomain and domain for Free Domain

It is a bit involving.

12/20/2010 03:52:27 PM · #20

Thanks...!

Just to be straight....as of now, I can see my cam via the web by going to my IP address of the modem with port 89 tagged on the end of it. I had to do some port forwarding in my linksys to accomplish this.

As it is now, my camera IP in my camera software is at:

192.168.1.240

I have it as static.

Under that there is a spot that says

DDNS Settings
It has a spot to put the url of the provider... member.dyndns.org
then
Hostname
Username
Password.

Is it as simple as just providing my info from Dyndns in those spots?

I'll have access to the camera again on Tuesday. I'll have all this info and give it a go !

Originally posted by marnet:

Originally posted by kenskid:
The router is Linksys and the cams are Trendnet TV-IP422W.

Here is the article showing the setup for my camera:
//www6.nohold.net/Cisco2/ukp.aspx?pid=80&login=1&app=search&vw=1&articleid=16337&donelr=1

I found this for your cameras:
//www.trendnet.com/kb/kbp_viewquestion.asp?ToDo=view&questId=1948&catId=552

For DDNS on Linksys router see:
//www6.nohold.net/Cisco2/ukp.aspx?pid=80&login=1&app=search&vw=1&articleid=17246&donelr=1

You will need to get an account with //www.dyndns.com/:
pick a subdomain and domain for Free Domain

It is a bit involving.

12/20/2010 04:12:32 PM · #21

Originally posted by kenskid:

You need to convert your ISP IP address with port number, say:
111.222.333.444:89

to subdomain.dyndns-domain.com with port number. say:
ken.dyndns-home.com:89

DynDNS will ensure that the most recent ISP IP address can be found when you enter ken.dyndns-home.com. Cameras are at ports you specify on the router.

I am not sure how your camera software works so can't help there. Do you mean by "spots" router menus?

12/20/2010 04:17:09 PM · #22

By "spots" I mean a place to check off "use DDNS" as well as fields to enter Hostname, Username and Password.

Does that help you understand my minde? !!

Thanks again.

Originally posted by marnet:

Originally posted by kenskid:
Thanks...!

Just to be straight....as of now, I can see my cam via the web by going to my IP address of the modem with port 89 tagged on the end of it. I had to do some port forwarding in my linksys to accomplish this.

As it is now, my camera IP in my camera software is at:

192.168.1.240

I have it as static.

Under that there is a spot that says

DDNS Settings
It has a spot to put the url of the provider... member.dyndns.org
then
Hostname
Username
Password.

Is it as simple as just providing my info from Dyndns in those spots?

I'll have access to the camera again on Tuesday. I'll have all this info and give it a go !

You need to convert your ISP IP address with port number, say:
111.222.333.444:89

to subdomain.dyndns-domain.com with port number. say:
ken.dyndns-home.com:89

DynDNS will ensure that the most recent ISP IP address can be found when you enter ken.dyndns-home.com. Cameras are at ports you specify on the router.

I am not sure how your camera software works so can't help there. Do you mean by "spots" router menus?

12/20/2010 04:20:20 PM · #23

Originally posted by kenskid:

By "spots" I mean a place to check off "use DDNS" as well as fields to enter Hostname, Username and Password.

Does that help you understand my minde? !!

Thanks again.

Are these places in the camera software or router software? (I am still not clear on this)

12/20/2010 04:40:56 PM · #24

It is in the camera software. It is under the area where you put the IP you want the camera to use from the router.

Originally posted by marnet:

Originally posted by kenskid:
By "spots" I mean a place to check off "use DDNS" as well as fields to enter Hostname, Username and Password.

Does that help you understand my minde? !!

Thanks again.

Are these places in the camera software or router software? (I am still not clear on this)