Port Forwarding on 3bb Router

[alocacoc]

Hi

 

Months ago i forwarded port 59010 to my local Notebook. It worked fine. Now I wanted to use it again, but several tests tell me, this port number is now reachable. IP address of the local notebook is correct.

 

I temporarily turned off Firewall and AntiVirus software.

 

What I'm doing wrong?

Edited February 10, 2017 by alocacoc

[RichCor]

What does the router say your WAN address is currently?  

 

If your ISP has re-provisioned your account to receive a (100.64.0.0 – 100.127.255.255) Private IP Carrier-Grade NAT as a WAN address then that would do it.  If so, try rebooting your router a few times to see if it will be issued an actual direct routable Public IP WAN address (or after ten attempts, call them and ask for a Public IP).

 

 

[alocacoc]

I tested it with my current Public IP and as well with the No-Ip (Dynamic DNS). No-IP seems to work fine. But I'm not sure if I understand your post properly.

[RichCor]

Is your router's WAN IP address in the (100.64.0.0 – 100.127.255.255) range. If so, port forwarding won't function.

[alocacoc]

I just checked it. It is on the the range you mentioned. I just restarted my router and got another ip, but still in the same range. So you suggest to call 3bb and ask for a public IP? I'm afraid the support have no cue what I asking for.

 

When i check websites like "whatismyip" they show me a complete different ip.

Edited February 10, 2017 by alocacoc

[alocacoc]

Ok RichCor, you're great. I just called 3bb, they did reset something and immeaditly got a 223..... address. Now it's confirmed that the port i forwarded is open. Ok, I still can't connect the application on the pc, but I will find the wrong settings. At least I can be sure that the router entries are correct.

 

Thanks dude.

[RichCor]

I usually suggest trying about 5-10 resets to see if they'll kick you out of that range. Then call, as that probably means they've adjusted the account for a 'shared' Carrier Grade - NAT IP address.

 

Most likely they've "re-provisioned" your account to issue your router's WAN address a "Private IP" (in that range) as a conservation method to preserve their dwindling pool of available "Public IP" addresses.

 

Just as your router can 'share' it's one WAN address to 'many' 192.168.1.x devices on your network utilizing NAT, ISPs too can do the same upstream and share one common "Public IP" address to many, many customers on their network by utilizing Carrier-Grade NAT.  

 

Under CG-NAT your outgoing traffic is recorded and transferred to a public-facing IP address on some router uptream. Return traffic is than matched to the previous outgoing traffic and directed to the proper requesting customer router.  When you do a check for "WhatisMyIP" it will report the CG-NAT 'shared' public facing IP address being used by the upstream router.  But any traffic trying to traverse on it's own (unsolicited) is instantly dropped as CG-NAT router won't contain a matching request to properly direct it to the one of many, many shared CG-NAT users.  

Edited February 10, 2017 by RichCor

[alocacoc]

Thanks for your additional information. Now I got a better understanding.

 

Now, my app on Android is able to connect my PC by no-ip. It wasn't able since the smartphone was connected to the same WIFI network. I switched to mobile data and...booom. Connected.

 

Thank you Sir.

You make my day :))

[RichCor]

The next step is to make sure your Computer is using a STATIC IP address ( .14) ...and hasn't been issued a completely different LAN IP address via DHCP by your router.  

 

If it isn't using the same IP address as before, then either update your router with the ever-changing new IP address your computer is using,

 

..or see if your router can issue your computer the same DHCP address over and over again via a reserved IP based on that computer's physical MAC address.  This is a great method is you want your notebook to be able to connect and request automatic DHCP addressing when connecting to other WiFi access points.

[alocacoc]

Yes, I use static IP as standard. I feel comfortable with that. 

 

The solution with "Reserved IP based on MAC address"  seems to be a good option. Good to know.

 

 

[alocacoc]

I just red this article: http://www.networkworld.com/article/2237054/cisco-subnet/understanding-carrier-grade-nat.html

 

It helps me to better understand what you mentioned in Post #7. Very interesting.

 

My last question, can it be that sometimes suddenly I get again a Carrier Grade - NAT IP address, or is the adjustment on the ISP side permanently? I mean, will I keep wan addresses in the 22x... range for god?

 

Thank you.

[RichCor]

Carrier Grade NAT is used predominantly with Mobile Phone Internet users, as there are just too darn many of them to give each an individual Public IP address ...and it's rare that a mobile phone needs to respond to unsolicited incoming Internet traffic. As most of these mobile users rely on outgoing with return connections, CG-NAT and shared facing Internet addresses seem to be a good fit.

 

Some fixed-line ISPs like 3BB, AIS, and True, tend to want to preserve what Public IP addresses they've been assigned and will try transitioning groups of fixed-line users to CG-NAT controlled connections. From what I've seen from the posts here on ThaiVisa, even if you asked to be removed from CG-NAT (and even offered good reasons for needing to consistently be dynamically issued a public IP address) they don't flag your account to prevent it from happening again at some later date.

 

I've been very lucky with my TOT FTTx account, having only ever been issued a CG-NAT address on two occasions when there were major system-wide network issues, and once that was resolved I was able to reset and be issued a dynamic public IP address. 

[alocacoc]

Carrier Grade NAT is used predominantly with Mobile Phone Internet users, as there are just too darn many of them to give each an individual Public IP address ...and it's rare that a mobile phone needs to respond to unsolicited incoming Internet traffic. As most of these mobile users rely on outgoing with return connections, CG-NAT and shared facing Internet addresses seem to be a good fit.
 
Some fixed-line ISPs like 3BB, AIS, and True, tend to want to preserve what Public IP addresses they've been assigned and will try transitioning groups of fixed-line users to CG-NAT controlled connections. From what I've seen from the posts here on ThaiVisa, even if you asked to be removed from CG-NAT (and even offered good reasons for needing to consistently be dynamically issued a public IP address) they don't flag your account to prevent it from happening again at some later date.
 
I've been very lucky with my TOT FTTx account, having only ever been issued a CG-NAT address on two occasions when there were major system-wide network issues, and once that was resolved I was able to reset and be issued a dynamic public IP address. 

Thanks once again for your deeper insight. I learned something. The guy at 3bb support did understand immediately what I asked for. So I guess they have many such inquiries.

Sent from my SM-G900F using Tapatalk

[S35owl]

I am trying to get my xbox one working online, I can connect to the online gaming but cannot (very seldom) join games. I am sure it is all related to port forwarding and having a static IP address (NAT is often showing as moderate). However, I have spent numerous hours trying to fathom it out using guides on the internet. I am with 3BB and would really appreciate it if anyone in the Pattaya / Jomtien area could help me. I've tried asking 3BB but they are not any hep with configuring the router for online gaming.

 

any real help would be much appreciated

[RichCor]

4 hours ago, S35owl said:

I am trying to get my xbox one working online

 

Suggest you take a look at past posts in ThaiVisa's Gaming Forum.

 

If you don't find anything there helping with your gaming connection issue there then try creating a new topic thread 

(hopefully then you will get the attention of other ThaiVisa active gamers)