That's the link I looked at also which is why I thought it had bridge mode.

That was one of my reservations about the Mikrotik stuff. The config looks a bit more involved than other options but they get solid reviews and seem to be liked by the professionals that use them.

How have you found the initial setup and configuring on your SXTs?

Its not easy or very intuitive, and thats coming from Drayteks which themselves arent very user friendly.
I just tried on my second SXE and I got the IP passed through to the Draytek, but couldn't get internet working on it, I think I need a bit more playing about, at least I didnt have to hang out of the window to reset it!

In reply to a post by Rolandrat:

I didn't think 3 did CGNAT unlike I think EE for example.

Three does CGNAT if you use the normal three.co.uk APN. If instead you use the 3internet APN you get a dynamic public IP address and no NAT on Three's network.

To check whether you have a public IP address, got to https://whatismyipaddress.com/ and then check on your router's UI to see what it thinks it's external IP address is. If the two are the same you have a public IP address, if not, you have CGNAT.

Thanks for the replies. Good news is I have a public IP which is great. My Three connection is indeed using 3internet so that confirms what�s been said above.

Now I need to choose between the SXT and the UHG from Mikrotik. I�ve used Draytek before so know what you mean with the GUI. Looks like Mikrotik even more difficult to configure. Anyone advice between these two models?

In reply to a post by andyh747:

Thanks for the replies. Good news is I have a public IP which is great. My Three connection is indeed using 3internet so that confirms what�s been said above.

Now I need to choose between the SXT and the UHG from Mikrotik. I�ve used Draytek before so know what you mean with the GUI. Looks like Mikrotik even more difficult to configure. Anyone advice between these two models?

If you have good line of site and nothing in the way get the UHG, otherwise get the SXT if you can't see the tower completely - e.g tree or another object in the way.

Thanks Jake4,

I don't have good line of sight so the SXT is probably a better bet. However I've received info regarding the Mikrotik OS and a slight problem with bridging with the Ubiquiti USG. In summary, in case it affects somebody else is as follows:

there is currently a bug in the USG firmware that Ubiquiti are aware
of but they do not have an ETA on a fix currently. Essentially this bug means
the USG does not properly route traffic when it receives a /32 address via
DHCP. Currently Mikrotik LTE products provide a /32 address when operating in
passthrough (bridge) mode. The latest beta version of the Mikrotik RouterOS
software allows you to use an expanded subnet by entering the following command
in the terminal interface:

/interface lte apn set 0 passthrough-subnet-selection=auto

This allows you to work around the bug in the USG firmware and the connection
should operate as expected.

Also for those looking for bridge/passthrough mode, I found this example wiki from Mikrotik:

Passthrough Example

It doesn't sound the easiest thing to implement and if you then want to access the Mikrotik through your LAN you need to start setting up VLANs which again gets complicated. See here:

Bridge Mode with VLANs

In reply to a post by andyh747:

It doesn't sound the easiest thing to implement and if you then want to access the Mikrotik through your LAN you need to start setting up VLANs which again gets complicated. See here:

I guess that depends on how happy you are working on a command line. To me it looks pretty trivial to setup the whole thing using the command line, including the passthrough, and I don't own any MikroTik equipment. Then again I have spend most of the day at the command line for many years now

The one thing I have come to dislike about the DrayTek's is that not everything can be configured through the command line and you have to muck about clicking stuff in the web interface. Makes replicating stuff from one site to another much more complicated and prone to error.

I wouldn't say the MikroTik was harder to configure than Drayteks, if anything I think the MikroTik web UI is better than the Drayteks.