Well my Dyndns has stopped working in Kable Deutschland…
I am a bit pissed…
It appears that they have changed from IPv4 to IPv6 and there is somewhere in their network a conversion back to IPv4… 🙁 that I think it is killing my DynDNS functionality…
I am trying to see how I can bypass this issue…
Talking with them is hard (almost impossible, I am dependent on good will from the support team in speaking English…) because I do not speak German… 🙁 so I guess I will need to know how I can reconfigure my devices… 🙂
Most of the pages that speak about similar issues are in German also so they are not much helpful to me…
First lets us know a bit more about the device… (Enumeration)
I asked for the cheapest one… I got an unknown (to me) cable modem CBN brand / model number CH6640E
After some search i found the following manual on the device…
http://www.ktech.no/CG6640E_User_Guide_English.pdf
German Version…
https://www.kabeldeutschland.de/psources/media/Handbuch_compal_cbn_ch6640e.pdf
There are some differences on the manuals… But even this German version has more menus than my device…
More info about the device…
Vendor CBN Inc.
Model CH6640E
Hardware Version 1.0
Firmware Version CH6640-3.5.11.7-NOSH
Boot Version PSPU-Boot(BBU) 1.0.12.19m1-CBN03
Interesting reading, it seems that the device can have wi-fi but some how it is not functional might be because it is not there or because someone disabled it in the firmware… (well I did not ask the wi-fi version to make it cheaper…) I will check this later.
In one of the documents I read that there is 2 special users configured on the device… 🙂
1 – Admin with default password admin for access to the gateway pages user access…
2 – root with default password compalbn for access to the Operator mode… I guess this is the equal to a privilege user… 🙂
Of course Kabeldeutschland has changed the password or disabled this functionality… 😛
the menu schema according with the manuals is not the same also…
It seems that I have some missing menus.
Sadly one of the things that it is missing is the logs webpage…
I will have to find if I can have access to that info in another way. 🙁
In the manual it seems that some firmware have the webpage where we can set up dyndns configuration…
I wonder if they disabled it on purpose or it is my device that does not handle this extra configs… 🙁
Lets try do see what firmware has that option and what are the available firmware… 🙂
Manufacturer…
http://www.icbn.com.tw
That conveniently has his page under construction… 🙁 now at 04-01-2015…
This are the listening ports from inside…
PORT SCAN
PORT STATE SERVICE VERSION
21/tcp open tcpwrapped
53/tcp open domain dnsmasq 2.46
80/tcp open tcpwrapped
554/tcp open tcpwrapped
5000/tcp open sip (SIP end point; Status: 501 Not Implemented)
7070/tcp open tcpwrapped
For now this is all…