For Windows mainly, and a Mono variant for GNU/Linux.
https://thronic.com/Software/VPN-Bypass/
Made it originally for routing my own Plex Media Server through local VPN. Linux version tested OK on Debian and Ubuntu variants, users reporting success on other distributions as well. On the Windows side it's mostly tested on 2012 R2, but also 7, 8.1 and 10.
Pretty stable by now, and free to use.
https://thronic.com/Software/VPN-Bypass/
Made it originally for routing my own Plex Media Server through local VPN. Linux version tested OK on Debian and Ubuntu variants, users reporting success on other distributions as well. On the Windows side it's mostly tested on 2012 R2, but also 7, 8.1 and 10.
Pretty stable by now, and free to use.