Am I on CG-NAT?

Forums › 2degrees (including Slingshot, Orcon, Flip, Stuff Fibre, MyRepublic, 2talk and Vocus) › Am I on CG-NAT?

gcorgnet

1078 posts

Uber Geek

#265782 11-Feb-2020 09:07

Hi, it seems like I have lost access to my home server (has been running flawlessly behind DDNS for years)

What's the best way to check that the issue is in fact due to my home Fibre connection having been put on CG-NAT? Just wanted to find out before I hit up 2degrees about it.

Cheers

Note: Yes, my internet connection does work and my home Cloud Cameras (Wyze and Arlo) still work. Just access to my various services is no longer working.

Cheers

cyril7

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#2415891 11-Feb-2020 09:09

Hi, what IP is the wan interface on the router, if its in 100.64.0.0/10 then it's cg nat

Cyril

TheMaskedOnion

51 posts

Master Geek

#2415954 11-Feb-2020 10:14

CGNAT just happened to me as well, i'll be giving 2degrees a call tonight to hopefully be put back on a dynamic IP.

gcorgnet

1078 posts

Uber Geek

#2415961 11-Feb-2020 10:23

thanks for the heads up. Increases the likelyhood of this being the cause of my issue.... Problem is I run my Unifi Controller on my own server and obviously can't access it externally right now to check what the WAN IP is (!)

mentor

132 posts

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#2415968 11-Feb-2020 10:49

I can no longer connect to my home vpn (OpenVPN) - Gave 2Degrees a call and they assured m I'm not on CGNAT "yet" - Apparently when you get moved you are notified via email - that's what I got told.

So will need to start troubleshooting from my end once I'm back home.

cyril7

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#2416010 11-Feb-2020 10:54

gcorgnet:

thanks for the heads up. Increases the likelyhood of this being the cause of my issue.... Problem is I run my Unifi Controller on my own server and obviously can't access it externally right now to check what the WAN IP is (!)

To get around remote access issues on CG-NAT, create a reverse SSH session to a server on the outside, and SSH tunnel back, I do it at a few locations and it works fine.

Cyril

jonathan18

7413 posts

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#2416031 11-Feb-2020 11:20

mentor:

I can no longer connect to my home vpn (OpenVPN) - Gave 2Degrees a call and they assured m I'm not on CGNAT "yet" - Apparently when you get moved you are notified via email - that's what I got told.

Nup, don't think you've been given correct advice there - well, it wasn't the case for me, anyway as I never received any formal notification. Rather, it was the 2D rep here on GZ that checked and confirmed that I had been shifted.

hio77

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Lizard Networks

#2416087 11-Feb-2020 11:51

cyril7:

gcorgnet:

thanks for the heads up. Increases the likelyhood of this being the cause of my issue.... Problem is I run my Unifi Controller on my own server and obviously can't access it externally right now to check what the WAN IP is (!)

To get around remote access issues on CG-NAT, create a reverse SSH session to a server on the outside, and SSH tunnel back, I do it at a few locations and it works fine.

Cyril

or use zeroteir as a VPN instead ;) udp holepunching ftw.

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Sharesies

Trade NZ and US shares and funds with Sharesies (affiliate link).

Mahon

473 posts

Ultimate Geek

#2416089 11-Feb-2020 11:55

Are all the other ISPs the same as far as this issue goes?

hio77

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Lizard Networks

#2416092 11-Feb-2020 12:02

Mahon:

Are all the other ISPs the same as far as this issue goes?

Larger isps likely have larger ip pools and thus dont have any issues with spare IP's.

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

TheMaskedOnion

51 posts

Master Geek

#2416224 11-Feb-2020 14:40

Just a follow up from me.

Called 2Degrees, they apologised for the unannounced change to my connection. They asked me if i needed to connect home for work and i said yes (which is true) and they assigned me a static IP. I did ask about just getting a dynamic IP since i don't really need a static IP but they said that they weren't giving them out any more once CGNAT had been applied.

Big thanks to 2Degrees support for sorting it out without any fuss.

michaelmurfy

meow
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#2416229 11-Feb-2020 14:44

Guys - please discuss in the existing thread: https://www.geekzone.co.nz/forums.asp?forumid=85&topicid=255661

Michael Murphy | https://murfy.nz
Referral Links: Quic Broadband (use R122101E7CV7Q for free setup)

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