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8 posts

Wannabe Geek


Topic # 195243 12-Apr-2016 09:24
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Hi,

 

I just had my old Motorola cable modem "upgraded" to a Technicolor TC7210D. Since then I have been trying to configure my internal network. And I have hit a stumbling block where I can't get the port forwarding to work.

 

I have read through a few forums on this site and Vodafone's and have read mentions of users not being able to use port forwarding, but the issue has never really been addressed. Can anyone please shed some light on whether this is broken, or there are some weird configuration steps needed.

 

I have done all I think is necessary (and some hail mary configurations) to get it working. First of all the port forwarding was working on my prior setup (modem->my own router). Now, the services are reachable from the internal network (HTTP, SSH), but not externally. Server's configuration has been triple checked, server firewall is not blocking me.

 

This is the first router I have used where MAC to IP binding for static IPs isn't used, and what seems to be an automatic discovery used. But it seems to work since the static IP is available on the internal network (which I guess proves the router is doing its job in that regard).

 

Also as a fallback flicking it into bridging mode is the obvious choice, but from what I read this is not on the feature list of the modem. So I guess I'm stuck.

 

Any help appreciated.

 

Cheers

 

crabbey


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501 posts

Ultimate Geek
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  Reply # 1530917 12-Apr-2016 16:40
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http://www.geekzone.co.nz/forums.asp?forumid=40&topicid=175218&page_no=9 have a read of that thread as its all read been covered








8 posts

Wannabe Geek


  Reply # 1530944 12-Apr-2016 17:11
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Read it before posting. Reading it again all I see are a couple of user experiences:

 

Lias:
kiwinewt: I've just been put onto one of these... has anyone had any luck with Port Forwarding? For some reason none of my port forwarding is working at all...

 


Yeah good luck with that.

These are ultra budget crappy products, designed to save money for Vodafone, and not in any way shape designed for power users (that being anyone who'd ever want to log in and configure anything themselves).

Fight to the death to keep a Cisco instead.

 

phantomdb: Also just noticed how do i setup a perm dhcp assignment on thisTC7210, after 7days my port forwarding will break by the looks of it.
At least the netcomm wifi routers had this feature.

 

As I said there is no resolution to the issue mentioned. The first one has no practical value, at least your response mentioned you actually tried port forwarding. Did you end up getting things to work, or biffing the thing? Then what options did you have of finding a solution with port forwarding? Another device from Vodafone, or did you go with another medium through another provider?

 

 


 
 
 
 


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  Reply # 1531153 12-Apr-2016 22:22
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to be honest the unit in question is located my parents,

 

I find this modem a total piece of junk i couldn't even set up a DMZ and forward anything to a DECENT router, cant assign static dhcp leases, in the end i gave up.

 

 

 

But thinking of this now you could setup on the lan side a /30 and set a generic  portforward 1 - 65535 to other lan ip.......... a bad DMZ and possible work around.

 

 

 

 






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  Reply # 1531155 12-Apr-2016 22:24
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  Reply # 1531156 12-Apr-2016 22:25
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http://setuprouter.com/router/technicolor/tc7210-dnz/dmz-75318-large.htm

 

this mentions DMZ

 

them just add your own router to the lan side an keep your fingers crossed.






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  Reply # 1531157 12-Apr-2016 22:27
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https://hackaday.io/project/3441-technicolor-tc7200-cable-modem

 

The lowest-end cable modem available for UPC, KabelDeutschland and other cable internet provides is the Technicolor TC7200. It is marketed as "modem", but in fact it is a router.
The firmware is branded/limited, buggy and "ugly" (e.g. complete web interface live-translates via javascript, non-working options like bridge-mode and wifi). As the device runs linux and provides different interfaces (including cable), it would be nice to get into the system and play with it. I will use a unit off ebay, as the units provided by the cable company are still owned by them (and I dont want to jam the interwebs).






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  Reply # 1531159 12-Apr-2016 22:34
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i'm only putting up with this until the parents can get fiber then i'm switching them from vodafone, and the same when my street gets fiber.








8 posts

Wannabe Geek


  Reply # 1531195 12-Apr-2016 22:57
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Thanks for your replies. I hadn't thought of dmz but gave it a go and it works. Let's now see how reliable it is.

Yeah I hear ya about waiting for fibre...

That post on hackaday is truly scary given the sheer number of these crappy devices out there.

Cheers again

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  Reply # 1540843 23-Apr-2016 19:37
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crabbey: Thanks for your replies. I hadn't thought of dmz but gave it a go and it works. Let's now see how reliable it is.

Yeah I hear ya about waiting for fibre...

That post on hackaday is truly scary given the sheer number of these crappy devices out there.

Cheers again

 

 

 

Just following up here, hows the DMZ thing working out?








8 posts

Wannabe Geek


  Reply # 1541950 26-Apr-2016 09:07
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What I ended up doing was putting the single machine in the DMZ (since all the ports I want exposed are on that box). It has been working fine.


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