TOT DSL -- how often do I.P. addresses change?

[Jingthing]

I have a situation now where it would be best if my I.P. address doesn't change very often. Any idea how often I should expect my (Jomtien) TOT DSL I.P. address to change? I've never tracked it before so I have no idea. 

[ELVIS123456]

DSL services by default are Dynamic IP based - the IP address changes frequently, sometimes every time you log on.  However, there is a service called Static IP, whereby the ISP can provide you with the same IP address every time.  Best to ring TOT and ask if they offer a Static IP addressing service and how much.

 

 

 

[Jingthing]

I read another source saying it can be random and sometimes it's the same for a a long time. I'll track it and see. So far it doesn't change just by logging on.

Sent from my Lenovo A7020a48 using Thailand Forum - Thaivisa mobile app

[ArnonK]

What's the reason you ask for that? Normal DSL Services are using Dynamic IP's, means that the given IP is changed, in what rhythms, is dependent on the used ISP.

 

Just for surfing and/or access other websites, it doesn't matter what IP Address your connection is using at that specific time. That would be different if your system should be accessible FROM the internet for what reasons ever. 

 

If you need to have your system accessible from the Internet, despite using a more expensive Static IP from your ISP, you could also use a (maybe free) dynamic IP Service like from No-IP, DynDNS or others.

 

[thedemon]

TOT reset the connection, which means a new IP address precisely every 24 hours. It is the same whether it is ADSL or Fibre.

 

I asked TOT if they could stop resetting my connection but even though I had a fairly expensive (9K/month) Fibre package they had no way of singling out one connection so couldn't do it.

 

The issue for me was the connection going down at an inconvenient time. I was able to get around that by setting a CRON job on my router so that it reboots every day at 3AM. Therefore the reconnection is always once a day just after 3AM.

 

But if it is the IP address change that you don't want, I'm afraid your going to be out of luck with TOT. In my experience the IP address always changes with a disconnect/reconnect.

[Jingthing]

Yes, thanks for the responses.

My tracking has indeed shown it changes very often.

Oh well!

I wanted it to be the same for security reasons of another user allowing me into their router login, which can be limited to a specific I.P.

[johng]

I'm using an old TTT/3BB   ADSL2 modem in bridge mode with ToT

 

The modem says my DSL line has been up for over 300 hours  if ToT reset every 24 hours would the

DSL status reflect that ?

 

 

 

Edited April 6, 2018 by johng

[thedemon]

11 minutes ago, Jingthing said:

Yes, thanks for the responses.

My tracking has indeed shown it changes very often.

Oh well!

I wanted it to be the same for security reasons of another user allowing me into their router login, which can be limited to a specific I.P.

 

You can usually set that function to only accept connections a range of IP addresses rather than a specific IP. So you could enter all TOT's dynamic IP addresses. 

 

Though I'm not sure how practical that would be.

 

Another way might be to setup DDNS on your router and then enter that hostname as the allowed connecting device on the other router since that hostname should always resolve back to your current IP. 

[thedemon]

12 minutes ago, johng said:

I'm using an old TTT/3BB   ADSL2 modem in bridge mode with ToT

 

The modem says my DSL line has been up for over 300 hours  if ToT reset every 24 hours would the

DSL status reflect that ?

 

 

 

 

No because the DSL uptime is measured at the Physical layer (layer 1) whereas the TOT disconnect/reconnect is done at the Network Layer (layer 3).

 

But if you have logging enabled on that router, you should be able to see the PPPoE disconnect/reconnect every 24 hours.

[johng]

just to answer my own question    as it happens my  24 hours was just about to expire so I monitored my  router..   new IP after 24 hours on ToT  ADSL for me too.

 

Then disconected

 

 

And auto magically back again with new IP

 

[Jingthing]

So if TOT resets every 24 hours, is it at the same time every 24 hours? If so, how can I determine that time?

[Jingthing]

46 minutes ago, thedemon said:

 

You can usually set that function to only accept connections a range of IP addresses rather than a specific IP. So you could enter all TOT's dynamic IP addresses. 

 

Though I'm not sure how practical that would be.

 

Another way might be to setup DDNS on your router and then enter that hostname as the allowed connecting device on the other router since that hostname should always resolve back to your current IP. 

Range of TOT dynamic IP addresses? Enter them all? What are they? Yes, that does sound impractical unless there was a way to do a global thing like first numbers, then *********.

 

I'll look up setup of DDNS as I don't know what that is. 

[johng]

The range of ToT dynamic IP's is quite large you could
add address blocks like
103.21.24.0/24
103.21.25.0/24
103.21.26.0/24
103.21.27.0/24
Etc etc

Maybe better to use the Dynamic DNS solutions .

[Jingthing]

Setting up ddns sounds quite complicated. I guess I'll first check the target router to see whether access can be limited based on host name rather than ip address. Otherwise no point of even trying to figure it out.

 

On the paying tot for a static ip idea other than the extra cost which is an obvious downside my policy dealing with Thai utilities is it ain't broke don't fix it mode. Yeah maybe irrational but that's my comfort zone.

 

Sent from my Lenovo A7020a48 using Thailand Forum - Thaivisa mobile app

 

 

 

 

[ArnonK]

@thedemon:

 

To block all DDNS is practically impossible. The User is connected next to a DSLAM (Exchange) which is working with a sudden IP Range only, by multiplexing that service. Don't know at this time, in the older age of DSL TOT was sharing and multiplexing in a range of 1:50! By blocking some IP Range, the User would block himself too!

 

@jingthing:

 

DDNS isn't complicated. You just sign up for such Service by choosing a Hostname for your system. If you've some problem, the service from that companies is mainly very good. They also have good Tutorials about the How Too....! By NO-IP you could sign up for 3 different Hostnames for free with the only limits to at least access every 30 days once that host! You just need to download the DDNS Client (free), install and configure with your Hostname and run it. If the IP Address is changed by the ISP, that Client will send the new IP to NO-IP and upgrade. That's all! 

All that will be done within 5-10min! 

[thedemon]

15 hours ago, Jingthing said:

So if TOT resets every 24 hours, is it at the same time every 24 hours? If so, how can I determine that time?

There is no fixed time. It is reset precisely 24 hours after the initial connection.

 

That's why I have my router set to reboot at 3AM every day. It reboots just a few seconds before TOT would have reset the connection anyway.

[Crossy]

9 hours ago, ArnonK said:

DDNS isn't complicated. You just sign up for such Service by choosing a Hostname for your system. If you've some problem, the service from that companies is mainly very good. They also have good Tutorials about the How Too....! By NO-IP you could sign up for 3 different Hostnames for free with the only limits to at least access every 30 days once that host! You just need to download the DDNS Client (free), install and configure with your Hostname and run it. If the IP Address is changed by the ISP, that Client will send the new IP to NO-IP and upgrade. That's all! 

All that will be done within 5-10min! 

 

Yup it really is a piece of cake to set up.

 

Many if not most routers also have a built in DDNS client (No-IP is very popular) so there's no need to run a PC with the client.

 

My TOT HG8245H is one of them, easy-peasy, find the config behind Network Application - DDNS Configuration.

 

[Guest]

18 hours ago, johng said:

The range of ToT dynamic IP's is quite large you could
add address blocks like
103.21.24.0/24
103.21.25.0/24
103.21.26.0/24
103.21.27.0/24
Etc etc

Maybe better to use the Dynamic DNS solutions .

Dynamic DNS wouldn't help in this case as it only maps the IP with the address. The router will most likely use IP-address based access list, not DNS based one.

 

Using a server with static IP address would help. Either by setting up a VPN or a simple http/https proxy. 

 

Source browser -> proxy/VPN with static IP -> Router with IP access list

 

[Grumpy Duck]

Try this. Open a command prompt window and at the end of the line type

ipconfig /all

[Grumpy Duck]

On 4/6/2018 at 3:48 PM, thedemon said:

 

You can usually set that function to only accept connections a range of IP addresses rather than a specific IP. So you could enter all TOT's dynamic IP addresses. 

 

Though I'm not sure how practical that would be.

 

Another way might be to setup DDNS on your router and then enter that hostname as the allowed connecting device on the other router since that hostname should always resolve back to your current IP. 

On my cable router provided by TRUE I can allow or block users by MAC. Unless you change network cards the MAC is constant IP not so much. In the US I used a series of static IP’s for a server. When I worked in a university computer lab we used static IP’s. Every semester I had to manually enter each IP address as we deep formatted each pc hdd

btw, a wireless card and LAN will have different MAC addresses

Edited April 7, 2018 by Grumpy Duck

[johng]

I'm using  the "free"  DDNS service from No-IP .com   ( www.noip.com )

however to keep the hostname active  they require a visit to their website every month to complete a capture/ not a robot authentication.

 

Quote

Please confirm your hostname now. Inactive hostnames are removed from our system if they are not confirmed every 30 days. This policy helps keep only active hostnames on our network.

does anyone know of a free service that doesn't require  that sort of thing ??

[thedemon]

This is reliable and not as spammy as most of the free ones.

 

https://www.duckdns.org/

 

 

[Crossy]

1 minute ago, thedemon said:

This is reliable and not as spammy as most of the free ones.

https://www.duckdns.org/

I've not tried duck, but no-ip isn't exactly spammy, just a reminder to refresh every month or so. Takes 30 seconds.

[thedemon]

3 hours ago, Crossy said:

I've not tried duck, but no-ip isn't exactly spammy, just a reminder to refresh every month or so. Takes 30 seconds.

 

I wasn't referring to no-ip as being spammy but some of the other lesser known free ones are.

 

I have several routers running DDNS in different locations and the monthly captcha completion is enough of a hassle for me to avoid it. But I agree with you if just running one account on your home router, it's not a big deal and no-ip has a good reputation.

 

 

[BigT73]

Hi Jingthing, a secure way doing this if you have a dynamic ip is to change the port number of your appplication. If you are using ssh for example everyone leaves it as default port 22 and the hackers know this too.  So using a high numbered port from 10000-66000 range you wont have any issues.

I tested this on a popular vps reading my incoming ip connections log file.  It was getting hammered from china russia etc, as soon as I closed all ports for things I didnt use i.e ftp and changed ssh to a high port number not a single attempt, tested it over a month.

[johng]

This is reliable and not as spammy as most of the free ones.
 
https://www.duckdns.org/
 
 

I signed up with duckdns.....working ok so far...the actual signup process was a bit confusing at first as they make you
"sign in" via Google or faceache or Twitter
to get to the signup page

Good instructions of howto setup many different routers made the router bit easy...then all was left was to foward the needed port [emoji3]

[chrisinth]

On 4/6/2018 at 4:22 PM, Jingthing said:

So if TOT resets every 24 hours, is it at the same time every 24 hours? If so, how can I determine that time?

JT, to determine your 'lease' of the IP, assuming you are using Windows follow this underneath. Although this is not TOT, you will see something similar.

 

1. Open Network & Sharing and click on the Ethernet reference as shown

 

2. Click on Details

 

 

This will show you the lease time given for your connection. Normally if you shut your confuser down, it will give you a new IP address.

 

3. Lease time

 

[Guest]

12 minutes ago, chrisinth said:

JT, to determine your 'lease' of the IP, assuming you are using Windows follow this underneath. Although this is not TOT, you will see something similar.

 

1. Open Network & Sharing and click on the Ethernet reference as shown

2. Click on Details

 

3. Lease time

 

That lease time is from your local router, which serves IP-addressess to your local network.

 

It is not the same IP-address and not the same lease time from TOT ADSL. That one should check from the router.

 

Even if the lease time expires, let's say, every 1 day, it's still possible that TOT DHCP will offer the same IP-address for the next lease time.

 

 

 

 

[chrisinth]

12 minutes ago, oilinki said:

That lease time is from your local router, which serves IP-addressess to your local network.

 

It is not the same IP-address and not the same lease time from TOT ADSL. That one should check from the router.

 

Even if the lease time expires, let's say, every 1 day, it's still possible that TOT DHCP will offer the same IP-address for the next lease time.

 

 

 

 

Yes, you are correct. I am currently network connected to an AIS fiber router which I haven't got access to. If I remember correctly the last ISP lease we used was 96 hours, but am not sure if that is standard for the rest of the ISPs.

 

Sorry for the misdirection JT and thanks for the correction oilinki........................