[Openvpn-devel] Fwd: Bug#1012567: openvpn --mktun --dev-type tap --dev tap2 fails

[Bernhard S. <be...@bi...>]

Hi,

I've received the following bug report for the dco-enabled OpenVPN 2.6 
build currently sitting in Debian unstable. It looks like DCO is 
interfering with the CLI option to create a tap interface.

Bernhard



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Package: openvpn
Version: 2.6.0~git20220518+dco-2
Severity: important

Since 2.6.0~git20220518+dco-2 the following command fails:

openvpn --mktun --dev-type tap --dev tap2

with

Assertion failed at dco_linux.c:442 (tt-type == DEV_TYPE_TUN)
Exit due to fatal error


I don't have dco support in the linux kernel.


openvpn --disable-dco --mktun --dev-type tap --dev tap2


works as a workaround, but I think --mktun --dev-type tap should 
continue to work without it.

Regards,
-- 
Wolfgang Walter
Studentenwerk München
Anstalt des öffentlichen Rechts
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