aircoreboy
Regular Contributor
I have recently upgraded to the RT-AC66U from a D-Link DIR-655 as I was starting to have issues with the wireless coverage of the D-Link. I have noticed that a port scan from GRC now shows ports 135, 137-139 and 445 as being closed rather than stealthed, as was the case with the D-Link. I have 3 Windows machines sharing on a home network and did so with the D-Link. As I understand it, these ports are used for Network Neighbourhood, etc which has been the case with both routers, the only difference being that I now access Aicloud from an iOS device, whereas with the D-Link I had no WAN access to the network. Assuming Aicloud only uses the 2 ports in it's settings page and therefore doesn't use the Netbios or SMB ports, I can't understand why these ports aren't stealthed to a port scan originating from the WAN side since I have no services setup to use these ports from the WAN side. I am currently using F/W: Asuswrt-Merlin 3.0.0.4.354.27 Beta 1.
All help very much appreciated!
P.S. Being new to these forums I mistakenly started this thread in Suggestion Box and have no idea how to remove or close that thread, I would be grateful for any advice!
Edit: Having scoured the internet, I have found this not to be a security issue, a closed port is as good as a stealthed port, but I'm still interested to find out what feature in the router causes this to happen.
All help very much appreciated!
P.S. Being new to these forums I mistakenly started this thread in Suggestion Box and have no idea how to remove or close that thread, I would be grateful for any advice!
Edit: Having scoured the internet, I have found this not to be a security issue, a closed port is as good as a stealthed port, but I'm still interested to find out what feature in the router causes this to happen.
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