Hi,
On 03/07/20 11:18, Arne Schwabe wrote:
The main purpose of that RFC is to ensure we handle DNS and
--dhcp-options
consistently across all OpenVPN implementations we care about, and
that we
document this properly.
I see one as an implementation issue (can we specify a particular DHCP
option more than once) and one as an OpenVPN protocol issue.
I fully agree that it's time to think about and overhaul the DNS
settings for OpenVPN but I also believe that further abusing the option
'dhcp-option' is not the best way forward. The option 'dhcp-option'
only really applies to the Windows tap-win adapter as that is the only
adapter where you can use DHCP to add/change settings.
This not even remotely true anymore. Basically all platforms will accept
the dhcp-options for modifying the DNS settings.
AFAIK even the
new win-tun adapter does not use DHCP for this. Hence the term 'dhcp-'
is moot.
Yes. Of course we can specify nicer sounding names for these options and
that also break all kind of backwards compatibility for little gain or
we document that the dhcp- prefix in these options is for historic reasons.
I should have worded it more carefully, but Jonathan beat me to it:
On 03/07/20 11:30, Jonathan K. Bullard wrote:
> If you mean the term 'dhcp' should not be used in the name of the
> option, I agree. Perhaps something like "interface-option" would be
> better.
>
> But the _option_ isn't only for Windows tap-win adaptor. The option's
> arguments are passed to scripts via $foreign_option_* environment
> variables (on macOS, at least, and I think on most or all platforms).
> And the Tunnelblick scripts use them to modify network settings, sort
> of as if they came from DHCP, but not actually using DHCP.
I fully understand that most of those options are supported (or should I
say, '(ab)used' ) by the other platforms but what I meant was that the
name 'dhcp-option' is totally misleading as it has nothing to do with
DHCP *except* when using the tap-win adapter.
Thus, if we want an overhaul of this, let's do it right and change the
name of this option.
JJK
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