Suspect IP address connecting remotely to my xbox one console

Do you have your Xbox in the DMZ?

Thanks for your reply but no i don't. No dmz server has been specified in the wan setup on my netgear router at all

What ports do you have forwarded to the Xbox?  I'm guessing you have port 80 forwarded, as many here recommend under the mistaken belief it is needed (largely due to misleading information on the MS support site), and that your log file will show the connection attempts to port 80 and other forwarded ports (it likely does not log attempts to connect to ports that are not forwarded).  These are the only ports you need to forward:

88 UDP

3074 TCP and UDP

and if you have COD Ghosts, also:

3075 TCP and UDP

3076 TCP and UDP

Delete the other port forwards, and I suspect you'll see a lot less in your log.

I have no ports forwarded. My xbox online work great out of the box. No extra router settings at all. And these ip addresses were connecting on ports like 27555, 57654 etc.

Can you post at least part of your log?  If the connections are specifically listed as destined for the LAN IP of your Xbox, then those ports are forwarded (perhaps via UPnP), or those are outbound connections being logged (not inbound), or your router is doing something strange.  I've seen at least one other person report similar stuff, and that person had a Netgear router...

No one can actually connect to your xbox.

Its just rogue traffic. Some games are p2p and not everyones xbox uses port 3074 due to UPnP.

Mine sometimes connects using a port number in a high range especially if i previously used my 360.

This would probably show up on someone elses router log as an ip adress from the uk using a high range port number.