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I have TINC setup on a few linux boxes and they are working great.

  • linux001 (static ip vps - 10.0.0.1)
  • macosx002 (connects to linux001 - 10.0.0.2)
  • linux050 (connects to linux001 - 10.0.0.50)

I also have a Mac with OSX 10.12.2 that seems to be connected to linux001 but can not communicate. I got it to the point its at by starting with this guide on tinc-vpn.org. In the process of following the guide, I ran into an issue where there where no /dev/tun0 or /dev/tap0 ... after quite a bit of googling I found and installable package of tuntaposx on sourceforge since homebrew and macports failed when attempting to install there versions of the same package.

So, currently macosx002 seems to connect to linux001

Sending PING to linux001 (x.x.x.x port 655): 8
Sending 2 bytes of metadata to linux001 (x.x.x.x port 655)
Flushing 2 bytes to linux001 (x.x.x.x port 655)
Got PING from linux001 (x.x.x.x port 655): 8
Sending PONG to linux001 (x.x.x.x port 655): 9
Sending 2 bytes of metadata to linux001 (x.x.x.x port 655)
Flushing 2 bytes to linux001 (x.x.x.x port 655)
Got PONG from linux001 (x.x.x.x port 655): 9

However, when I attempt to ping macosx002 from linux001 I get the following error:

Error while writing to Generic BSD tun device /dev/tun0: Input/output error
Error while writing to Generic BSD tun device /dev/tun0: Input/output error
Error while writing to Generic BSD tun device /dev/tun0: Input/output error
Error while writing to Generic BSD tun device /dev/tun0: Input/output error

If I attempt to ping in the other direction I get the following error:

user-mac-mini:~ user$ ping 10.0.0.1
PING 10.0.0.1 (10.0.0.1): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
Request timeout for icmp_seq 4
^C
--- 10.0.0.1 ping statistics ---
6 packets transmitted, 0 packets received, 100.0% packet loss

This leads me to believe that tincd is infact connecting both ways ... but there is something wrong with routing to tun/tap on the macosx002

If I go to /dev/ both tun0 and tap0 do in fact exist but only when I install the package from sourceforge ... if I install the package via macports, homebrew, or make install ... tun0 and tap0 do not exist.

Any help would be appreciated ... if I end up finding the answer on my own first I will post it here.

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After reading through THIS awesome post I changed my tinc-up file to:

ifconfig tun0 inet 10.0.0.2 10.0.0.1 up netmask 255.255.255.0

Now I can ping and SSH to and from .1 and .2

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