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D6400
Hi, I am new to this forum but I have owned a D6400 router for 4 years. According to my logs, I have various unknown IP addresses trying to access port 80 on my router. Attached to this port is a lo...
Thank you for your prompt replies to my question.
I have made the changes to port forwarding as suggested. Thinking about it now, it was an obvious solution but ......... I am wise after the event, thank you to all.
I now realise that much of this stuff is just as I knew it in the 60s and 70s but the terminology has been updated. In my day external ports were cable pairs and internal ports were either equipment numbers (uniselectors) or telephone numbers all jumpered on the MDF or IDF ........happy days.
> D6400
Firmware version?
> According to my logs, I have various unknown IP addresses trying to
> access port 80 on my router. [...]
Connection attempts on the default web-server (HTTP) port would not
amaze me.
> [...] Attached to this port is a low level heating controller without
> any facility to change port attachment within its setup [...]
What, exactly, does "Attached to this port" mean to you? Did you
configure port forwarding on the D6400 to allow access to your
(unspecified) "low level heating controller"? Why? Do you really want
to access it from the outside world using a web browser?
> [...] so locking the inbound IP addresses seems the best solution.
I disagree. "Best" in what sense? Why not choose some non-default
value for the external port? It's not a true block, but I'd expect it
to evade most undesired connection attempts.
Assuming that we're talking about port forwarding, you could leave
the internal port at 80, if that would be easier on your (unspecified)
gizmo. All you'd need to do would be to specify the non-default port
number in the outside-world URL, like, say:
http://<your_puplic_IP_address>:6789
Also, I doubt that a D6400 has any option to block incoming
connections by IP address (or anything else). Visit
http://netgear.com/support , put in your model number, and look for
Documentation. Get the User Manual. Read. Prove me wrong. But I'd
bet that you can specify non-equal external and internal ports in a
port-forwarding rule.
Hi, thank you for your prompt reply.
Firmware: V1.0.0.82_1.0.82
Attached to this port means to me that I can access this low level heating controller using port forwarding as you sumised. I am not a techie so this is the only way that I know to access the heating controller when I am away from home.
I don't know how to set something up on the D6400 to "choose some non-default value for the external port?"
I don't know how to "specify the non-default port number in the outside-world URL"
I think yu are correct, in your assumption I have been through the user manual for the D6400 and I am unable to find anything about blocking specific inbound IP adreesses hence the reason for my post.
How does "specifying non-equal external and internal ports in a port-forwarding rule" help me in this case as I have no idea what it means.
Thanks again for your help but, although I understand something about telecoms from the Strowger / crossbar days, this modern IP stuff is beyond my knowledge.