Hey Broadband and Private WAN

So I've just had them switch their TP Link router to bridge mode so that I can use my router. However under WAN instead of a public IP address it's showing a 192.168 number which I believe is a private WAN IP behind a 'Carrier grade NAT',. I've never seen this before. Does this limit me from anything (port forwarding, VPN Client, DDNS etc) or can I just ignore it.

Thanks

As it's in bridge mode it won't have a WAN IP anymore. Ignore.

Thanks Carl. I would ignore however I now cannot port forward a port which seems a bit of a coincidence. Is that to do with this or is that another issue?

Thanks.

What "WAN" IP address is your router reporting?

Is this the same IP if you do a whatsmyip.org search?

doing whatsmyip it shows my public IP. on my router (not the bridge) is shows 192,168...

It's an ASUS. When I click on DDNS (not that I need that service) it tells me I'm on a private WAN. And I also cannot forward a port that I've always been able to (remote gate entry system) That led me to google and then to post here. Above my pay grade!

If your router is reporting 192.168.x.x on it WAN port then its behind an upstream device that is performing NAT. If the nearest upstream device (the ISP router) is *definitely* in bridge mode, then it would appear that the service provider is using CGNAT.

CGNAT should be in a 100.64.x.x/10 range. I'm wondering if bridge mode isn't actually bridge mode.

In reply to a post by CarlTSpeak:

CGNAT should be in a 100.64.x.x/10 range. I'm wondering if bridge mode isn't actually bridge mode.

Although thats the recommended range to use according to the RFC for CGNAT, they could also be using another private range like 10.x.x.x/8 (favoured by lots of mobile providers) or for that matter 172.16.x.x/12

Although 192.168.x.x/16 gives far fewer hosts, it is private, they could theoretically use it. Would be pretty odd though...

If the OP puts the TP-link ISP-side router back into router mode, wonder what WAN IP address his router gets then?

First you need to know you own router WAN MAC address. Go to the ISP router and set up fixed IP for your own router ie 19.168.1.100

Then on ISP router find DMZ setting and set that to 192.168.1.100 (What your own router is using). As by magic you should be able to port fowared with out issue.

Thanks for this. Trying to keep up. I'm assuming this will be why port forwarding isn't working? If that was, I woiulnt care to be honest.

Anyway, on my router, the WAN is 192.168.10.101. The gateway of the TP LInk (the bbidge is 192.168.10.1.

When I log in to that, it shows me the public IP adress and also a gateway showing 172.16 etc.

Now, Hey Broadband log in remotely to turn their TP Link to bridge mode. Advanced settings has been locked out. So I have no idea whether they have dome this successfully or not. Wireless signals are turned off (but I can do that).

Under networ4k map it shows one wired client (my router), PPOE, Google DNS and that's it. They then emailed me a username and password and told me to put my asus in to PPOE and use the credentials. So all is good other than this odd WAN IP, port forwrading and also it takes my wireless card about a minute to connect to the internet (but they may be another issue!)