tun tap can be implemented on Mac OS X using http://tuntaposx.sourceforge.net
It behaves in the same way as FreeBSD/OpenBSD implementations, but Qemu needs a patch to use the OpenBS/FreeBSD code. As per the patch listed in this forum thread: http://forum.gns3.net/post17679.html#p17679 And also as used in the MacPorts installation: https://trac.macports.org/browser/trunk/dports/emulators/qemu/files/patch-net-tap-interface.diff I've included it below in what I hope is the correct format (I used git diff, as I'm not checking in anywhere). Thanks, Ali Signed-off-by: Alasdair McLeay <alasdair.mcl...@me.com> diff --git a/net/tap-bsd.c b/net/tap-bsd.c index bcdb268..54cb305 100644 --- a/net/tap-bsd.c +++ b/net/tap-bsd.c @@ -44,7 +44,7 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, struct stat s; #endif -#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__APPLE__) /* if no ifname is given, always start the search from tap0/tun0. */ int i; char dname[100];
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