FritzBox different subnet error during scan RTSP cmd error 7

Marco E · 2021-02-05T08:55:53+00:00

Hi, I have a FritzBox with DVB-C and already used it with tvheadend in the past so the Box itself is working. Now I've changed the network setup that behin...

Oliver Greling

"Rules" (firwall rules) have to do something with ports - which ports have you forwaded?

OK, so we dont really have a way to go through as I can see.

Let's gather all the info and experience we have:

1) adding "satip_xml IP.OF.FRITZ.BOX:49000/satipdesc.xml" to the startup otions of tvheadend - necessary or not necessary?

Flole

There is no need to forward any ports if you don't do NAT. You just need to make sure the traffic is routed and not blocked. If you're doing NAT (which doesn't make any sense and makes things more complicated) you should forward all UDP ports or specify the ports in Tvheadend.

Adding that option is necessary if you don't let UPNP go through your router.

Oliver Greling

UPnP is activated. Believe me, I tried A LOT ;)

That's why I am trying to get a clean line in thinking about this and solving the isssue... :/

What about the "satip_xml..." thing?

Flole

As I said: If you're indeed routing UPnP between the subnets then the satip_xml option is not needed.

Oliver Greling

Well, I now deleted the satip_xml option - now i cannot see the tuners anymore.
And all UPnP settings are on.
Here is a screenshot from my gateway:

Flole

That option doesn't say anything about Routing of UPnP, it just allows the Firewall/Gateway to be configured with UPnP. But this is probably not the right place for support with configuring your gateway, the manufacturer or a specialized Forum is probably a better place to ask and get this kind of support.

Oliver Greling

It's not about configuring my gateway, it's just about finding a solution in getting the BASIC idea of what to do - regardless of the gateway hardware...

Flole

As I said: Disable NAT for that host, allow all UDP Traffic to go through from FritzBox to Tvheadend and add a static route. Specify the URL and don't care about UPnP. That's it. Now you just need to figure out how that is done on your firewall/router.

Oliver Greling

Could you specify "dsiable NAT for that host" with an example?

Flole

Don't do NAT for traffic with the FritzBox as destination. The source address that reaches the FritzBox should still be the original IP address and not the address of the gateway.

Oliver Greling

Well, I tried everything but without luck.

Flole

Have you disabled NAT for that host, allowed all UDP Traffic to go through from FritzBox to Tvheadend and added a static route? If you are missing one of those steps it won't work

Oliver Greling

Yes, yes, yes... Everything

Flole

Then you can check with Wireshark what is going on and what is not working.

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