UPnP problem

snoopy86

Hi,

i'm running openvpn on dd-wrt router, configured to use tun, because tap isn't available on android 4. I need to access xbmc upnp on several android clients over vpn.

When i'm connected over vpn i can ping all the servers but i can't see any upnp. If i'm connected on wifi, upnp is working fine.

Does anyone have any suggestions?

Tnx!

maikcat

if upnp uses broadcasts then you are out of luck...

Michael.

snoopy86

How do i find out that?

mwandelaar

Using wireshark or other network-monitoring tool will teach you UPnP uses port 1900 for it's SSDP:
http://en.wikipedia.org/wiki/Simple_Service_Discovery_Protocol

And that clearly states that UPnP is Multicast traffic. So i'm sorry, without explicit support(*) for multicast traffic, you're out of luck using tun.

(*) Is there any? I can't think of, because you would need at least to add an multicast-ip-address as a second ip-address to the tun-device.