Can not reach an internal device from outside the network

msamani · 2019-04-22T21:56:45+00:00

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msamani

I have a Connect Box, with a computer attached to it using an ethernet cable. SSH server is enabled on this computer and I can connect to it, using its ipv6 address, with my laptop which is on connected to the same Connect Box (wirelessly, but that shouldn’t matter)

I am trying to connect to this SSH server from outside my network, but that doesn’t work.

Here is some potentilly useful information about my Connect Box:


Standard specification compliant	:	DOCSIS 3.0
Hardware version	:	4.01
Software version	:	CH7465LG-NCIP-6.12.18.24-5p9-NOSH


IPv6 DS-Lite status	:	Enabled
DS-Lite-FQDN	:	aftr01.upc.ch

Under IP and port filtering, I have a table that looks like this:

Source IPv6 address	Destination IPv6 address	Protocol	Source port	Destination port	Allow	Enabled	Delete
All	2a02:aa10:627f:a400:bfc:a2d2:ae51:1d30 / 128	TCP	1 : 65535	22

That long string is the IPv6 address of my device.

When I try connecting to this from an outside computer, I see this:

connect to host 2a02:aa10:627f:a400:bfc:a2d2:ae51:1d30 port 22: Network is unreachable

What am I missing?

msamani

Thank you very much. After rebooting the modem, I can see IPv4 port forwarding options, and I can access my machine from outside.

Daniele_Sunrise

@msamani , welcome to our Community! 😀

With IPv6, you cannot forward ports. That’s why I changed your modem to IPv4. Now you can do the port forwarding in about 30 minutes in the menus and open port 22 from your PC to the outside.

Greetings

Daniele