openvpn icon indicating copy to clipboard operation
openvpn copied to clipboard
verified publisher icon OpenVPN

feature: add tun2tap support for tun client with tap server

Open pengtianabc opened this issue 5 years ago • 8 comments

Add a optinal param for tun2tap: tun client can connect with tap server.

pengtianabc avatar Apr 12 '20 04:04 pengtianabc

Some device like android and ios can not use tap mode, i added one --tun2tap option of handle arp on tun on client side, so we can use tun client with tap server.

pengtianabc avatar Apr 13 '20 02:04 pengtianabc

Hi,

On Sun, Apr 12, 2020 at 07:18:33PM -0700, pengtian wrote:

Some device like android and ios can not use tap mode, i added one --tun2tap option of handle arp on tun on client side, so we can use tun client with tap server.

This is definitely interesting stuff.

Arne and I have been thinking of writing something like this, so we can see the motivation :-) - now we just need to find time for a code review.

gert

-- "If was one thing all people took for granted, was conviction that if you feed honest figures into a computer, honest figures come out. Never doubted it myself till I met a computer with a sense of humor." Robert A. Heinlein, The Moon is a Harsh Mistress

Gert Doering - Munich, Germany [email protected]

cron2 avatar Apr 13 '20 06:04 cron2

  • Sample usage: client side: --dev tun --topology subnet --tun2tap; server side: --dev tap --topology subnet in some incorrect config, ip address on tun device is error
  • Known bugs: can not use with compress

pengtianabc avatar Aug 19 '20 03:08 pengtianabc

Just gave the code a quick look and although the issues I pointed out before are marked resolved, the issues are not resolved. To be included in OpenVPN we still need the code to be improved.

schwabe avatar Aug 19 '20 08:08 schwabe

hey @pengtianabc are you still interested in working on this PR? It's definitely good work, so it'd be nice to see it evolving properly.

ordex avatar Sep 17 '22 19:09 ordex

hey @pengtianabc are you still interested in working on this PR? It's definitely good work, so it'd be nice to see it evolving properly.

I am glad that someone are still interested in this feature. But i am busy recently, so i will try to solve issues and merge into latest when vacation.

pengtianabc avatar Sep 18 '22 16:09 pengtianabc

Hey guys, i am try to understand mac address resolusion in ipv6. In ipv4, we can replace request to mac boardcast to get target mac address, but how to do that in ipv6?

pengtianabc avatar Sep 22 '22 16:09 pengtianabc

@pengtianabc in IPv6 there is a Neighbor Discovery (ND) protocol that takes care of that.

ordex avatar Sep 22 '22 19:09 ordex