OpenVPN 1.5-beta8 is now available, and has some significant new features. * The major addition is "tun" device support for Windows, making OpenVPN on Windows now capable of connecting with OpenVPN running on any other platform.
* A set of --route options have been added to ease route management for routes which are tied to VPN tunnels. * The --ifconfig option has been extended to work with both tun or tap interfaces, and now also works on Windows. * Diagnostic capabilities have been improved with the new --mtu-test option and a better options consistency check that now works in all crypto configurations. * Due to the problem of "PMTU Black holes" or routers which interfere with Path MTU discovery or packet fragmentation, two workarounds are presented: --fragment and --mssfix. --fragment fragments packets internally, and --mssfix implements the "CLAMP MSS" capability which is found in some firewalls to set an upper bound on TCP segment size. * The Windows driver has been upgraded to be SMP safe. Still to do: I don't have access to a NetBSD or Mac OS X box, so I did not have a chance to code and test the --route command semantics for those platforms. James
