Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


361 posts

Ultimate Geek

ID Verified
Lifetime subscriber

#262139 7-Jan-2020 12:41
Send private message

Hi all,

This is a 2degrees and potentially a Chorus question.

I am trying to do port forwarding for some services on my 2degrees fibre connection. The firewall i use is OPNsense, which is directly connected to the ONT using pppoe. Needless to say port forwarding is not successful. I have opened up the port as per description of OPNsense and it should be working. The services on that port are working fine too. But I don't even see the port being hit from the outside.

So in my investigation i came accross something I can't really explain. The FW says my external WAN IP is but when looking at my external IP from the outside it's Is that because there's something like Carrier Grade NAT? I presume that is the difference between 2degrees network layer and internet traffic layer but I would have somehow expected this to be 1:1 NAT. So anything going to the 151 address to be directly forwarded to the 100.66 address.

So either the traffic isn't getting forwarded or it's hitting the FW as 151.210 and the FW isn't recognising it as legal traffic and dropping it (but not seeing that in the log).

So any help here would be greatly appreciated. How do others fare with port forwarding and PPPOE? Any issues? I am just trying to understand where the traffic is being dropped.

Thanks Heaps!

Filter this topic showing only the reply marked as answer Create new topic
249 posts

Master Geek

ID Verified
Lifetime subscriber

  #2386604 7-Jan-2020 12:43
Send private message

This is due to the CG-NAT 2degrees have recently implemented. The only choice if port forwarding is 100% required, is a static IP.

Quic "Sprinter" - Ref (Free setup): R536299EPGOCN




GoodSync. Easily back up and sync your files with GoodSync. Simple and secure file backup and synchronisation software will ensure that your files are never lost (affiliate link).
'That VDSL Cat'
12984 posts

Uber Geek

ID Verified

  #2386607 7-Jan-2020 12:45
Send private message

you are on CGNat. request a public ip..

#include <std_disclaimer>


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




361 posts

Ultimate Geek

ID Verified
Lifetime subscriber

  #2386611 7-Jan-2020 12:54
Send private message

Thanks heaps. Was suspecting some &€€&€_:- like that.


361 posts

Ultimate Geek

ID Verified
Lifetime subscriber

  #2387629 8-Jan-2020 21:03
Send private message

Yep, got fixed IP and all is working.

Filter this topic showing only the reply marked as answer Create new topic

News and reviews »

New Air Traffic Management Platform and Resilient Buildings a Milestone for Airways
Posted 6-Dec-2023 05:00

Logitech G Launches New Flagship Console Wireless Gaming Headset Astro A50 X
Posted 5-Dec-2023 21:00

NordVPN Helps Users Protect Themselves From Vulnerable Apps
Posted 5-Dec-2023 14:27

First-of-its-Kind Flight Trials Integrate Uncrewed Aircraft Into Controlled Airspace
Posted 5-Dec-2023 13:59

Prodigi Technology Services Announces Strategic Acquisition of Conex
Posted 4-Dec-2023 09:33

Samsung Announces Galaxy AI
Posted 28-Nov-2023 14:48

Epson Launches EH-LS650 Ultra Short Throw Smart Streaming Laser Projector
Posted 28-Nov-2023 14:38

Fitbit Charge 6 Review 
Posted 27-Nov-2023 16:21

Cisco Launches New Research Highlighting Gap in Preparedness for AI
Posted 23-Nov-2023 15:50

Seagate Takes Block Storage System to New Heights Reaching 2.5 PB
Posted 23-Nov-2023 15:45

Seagate Nytro 4350 NVMe SSD Delivers Consistent Application Performance and High QoS to Data Centers
Posted 23-Nov-2023 15:38

Amazon Fire TV Stick 4k Max (2nd Generation) Review
Posted 14-Nov-2023 16:17

Over half of New Zealand adults surveyed concerned about AI shopping scams
Posted 3-Nov-2023 10:42

Super Mario Bros. Wonder Launches on Nintendo Switch
Posted 24-Oct-2023 10:56

Google Releases Nest WiFi Pro in New Zealand
Posted 24-Oct-2023 10:18

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Norton for Gamers