samedi 3 septembre 2016

Galaxy Nexus, CM13.0, OpenVPN tap

Hello!
I'm trying to create an OpenVPN tap tunnel on my Galaxy Nexus, CyanogenMod 13.0-20160820.
The problem is, that no traffic is routed through the tap interface.

When the tunnel is up and I run "tcpdump -i tap0" on the phone, I can see broadcast traffic from my local network.
So I think the OpenVPN configuration is ok.
On the phone I can also ping machines in the local network using "ping -I tap0 192.168.1.xxx".
But it doesn't work if I omit the "-I tap0" option.

There is also a route:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 tap0

I also tried using a bridge between interfaces tap0 and dummy0, with no success.

Maybe iptables or sysctl needs modification ?!


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