Access NAS FTP using IPv6

vlatkovr

Junior Member
Nov 18, 2005
15
0
66
Hello.

I am having an issue accessing my NAS (FTP Server) from outside of my network. The issue is that I can not setup port forwarding as the router gets an IPv6 address from the internet provider.

This is my FTP server config on the NAS config page:
FTP.png


Router WAN info (do i have only one IPv6 available or more?):
image.png


Router Host port window (not quite sure what to put here):
image.png


NAS IPv6 setup set to Auto (gets an IP from the router):
image.png


NAS has IPv4 and IPv6 now (is this fine?):
image.png


Any help on how I can make the NAS FTP Server accessible from outside my network is greatly appreciated.

Thx
 

vlatkovr

Junior Member
Nov 18, 2005
15
0
66
I've managed to progress a bit. I've assigned the NAS an IPv6 address.

Tried an ONLINE PORT SCANNER IPV6 (http://www.subnetonline.com/pages/ipv6-network-tools/online-ipv6-port-scanner.php):
The checked port (21210, service ) is offline/unreachable!

I added the NAS IP address and port 21210 to the router HostPort table and tried again.

The checked port (21210, service ) is online/reachable! Great.

Tried to FTP to it from local network, all is fine.

Tried to FTP from outside my network, still can't connect.
What could the issue be?
 

theevilsharpie

Platinum Member
Nov 2, 2009
2,322
14
81
Port forwarding is a concept used by NAT, which is an IPv4-exclusive function.

For IPv6, to access your NAS, simply use the NAS's IPv6 address. If your router has IPv6 firewall functionality, you will need to ensure that your NAS's IPv6 address is accessible to the outside world, and that it's able to communicate over its FTP command port (TCP/21), as well as whatever data ports you've specified.
 

vlatkovr

Junior Member
Nov 18, 2005
15
0
66
Port forwarding is a concept used by NAT, which is an IPv4-exclusive function.

For IPv6, to access your NAS, simply use the NAS's IPv6 address. If your router has IPv6 firewall functionality, you will need to ensure that your NAS's IPv6 address is accessible to the outside world, and that it's able to communicate over its FTP command port (TCP/21), as well as whatever data ports you've specified.

In the thread above i've described that I am using the NAS ip v6 address and that I can ping it from outside my network. However I can not FTP to it still from outside my network.
 

azazel1024

Senior member
Jan 6, 2014
901
2
76
Have you checked your router settings to ensure that you aren't blocking FTP sessions across the firewall?