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38 posts

Geek
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Topic # 170858 28-Mar-2015 21:29
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Hi all

I've been tearing my hair out over this and i've reached the limits of my basic knowledge.

The basic problem is that I'm sharing an FTP service from my NAS out to my parents who live across the other side of the city.

It was working fine for at least a year, but stopped working a couple of months ago.

At the time I looked though the logs but they had been wiped because of an automatic firmware upgrade (Firmware: 06.10-29288 BETA), i did note that the settings failed to restore correctly at the time and then 3 hours later were restored successfully, however the settings were a little bit funny as the wireless was on and I thought i had turned it off and a couple of other things looked out of place.

I've rung Snap and they checked the basic setup and didn't find anything wrong, but obviously couldn't help further with the port forwarding. Which I understand, but i think something's gone wrong somewhere in the firmware upgrade process (either bug in firmware or settings restore).

Here's my current setup.

DYNDNS = uniquename.redirectme.net
Fritzbox (7340) modem (connected to fibre modem), ftp port 21000 forwarding to router on 21000 along with passive ports (55536 - 56559), has DYNDNS configured.
Asus Router, Port forwarding 21000 to NAS: 22000, passive ports (55536 - 56559), handles DHCP etc
QNAP Nas, FTP on port 22000, passive ports (55536 - 56559)

Any machine on the internal network (wired or wireless) can use the external name or external ip and port 21000 and can connect fine.
But my laptop on my cellphones hotspot can't connect, but can connect when on internal wireless.

I think the issue is with the modem, but how do I narrow it down to which device is actually setup wrong?

Any help greatly appreciated!





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SCM

457 posts

Ultimate Geek
+1 received by user: 47


  Reply # 1272594 28-Mar-2015 21:43
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The double NAT wont be helping any. Get rid of the Asus and forward the ports from the Fritz direct to the Nas.

I have a Fritz 7340, port forwarding works fine, can connected to my hosted at home services from anywhere.




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392 posts

Ultimate Geek
+1 received by user: 81


  Reply # 1272605 28-Mar-2015 22:18
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Does your 7340 allow you to capture traffic?  I have a 7390 and I can get it to capture all the traffic on an interface to a Wireshark compatible file, so I can see exactly what is happening in the Fritzbox.  This is the URL that works for me:

http://fritz.box/html/capture.html

You may need to replace "fritz.box" with the correct address of your 7340 (I run my own DNS servers and have added that address).

 
 
 
 


SCM

457 posts

Ultimate Geek
+1 received by user: 47


  Reply # 1272611 28-Mar-2015 22:31
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fe31nz: Does your 7340 allow you to capture traffic?  I have a 7390 and I can get it to capture all the traffic on an interface to a Wireshark compatible file, so I can see exactly what is happening in the Fritzbox.  This is the URL that works for me:

http://fritz.box/html/capture.html

You may need to replace "fritz.box" with the correct address of your 7340 (I run my own DNS servers and have added that address).



Yes, the 7340 does have this.

Thanks for the heads up, I didn't know that tool was in the Fritz :)




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38 posts

Geek
+1 received by user: 2


  Reply # 1272876 29-Mar-2015 14:40
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SCM: The double NAT wont be helping any. Get rid of the Asus and forward the ports from the Fritz direct to the Nas.

I have a Fritz 7340, port forwarding works fine, can connected to my hosted at home services from anywhere.


For various reasons I would like to keep both. Is your Fritz running same firmware?


fe31nz: Does your 7340 allow you to capture traffic?  I have a 7390 and I can get it to capture all the traffic on an interface to a Wireshark compatible file, so I can see exactly what is happening in the Fritzbox.  This is the URL that works for me:

http://fritz.box/html/capture.html

You may need to replace "fritz.box" with the correct address of your 7340 (I run my own DNS servers and have added that address).


It does have it which will hopefully help me narrow it down, thank you really appreciated!

SCM

457 posts

Ultimate Geek
+1 received by user: 47


  Reply # 1272887 29-Mar-2015 15:08
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Nope, looks like I'm on a slightly earlier one:  FRITZ!OS 06.10-28997 BETA





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