First of all
here is my trivial configuration. So short it's UDP, TAP without bridge with client-to-client enabled.
Currently my virtual network looks like that:
- Server is running on Ubuntu 14.04
- 1st client running on Ubuntu 14.04 too
- 2nd client running on Windows 8.1
- 3rd client running on Windows 8.1 as well
Both Windows clients are almost identical cloned QEMU VM: Windows, software (OpenVPN x86_64 latest). Only difference is that one of them use real network card and other behind NAT. No anti-viruses or firewalls installed, built-in firewall disabled.
Problem is: Windows clients only don't see each other, can't ping each other while can ping both server and Linux client just fine. I can successfully make pings in any direction except between those two Windows clients.
Hope somebody could have an idea why could something like that happen because I tried tons of different options with routing, but still have no idea why that happening. Thanks in advance for any help!