* Running PTP (Precision Time Protocol) over Wireguard
@ 2021-12-14 17:15 Antonio Teixeira
2021-12-20 17:00 ` Jason A. Donenfeld
0 siblings, 1 reply; 2+ messages in thread
From: Antonio Teixeira @ 2021-12-14 17:15 UTC (permalink / raw)
To: wireguard
Hey,
Has anyone ever got PTP (precision time protocol) working with
hardware timestamping over a wireguard VPN?
I need to start linuxptp (http://linuxptp.sourceforge.net/) listening
on a Wireguard virtual network interface, however, it seems that
linuxptp relies on the SO_TIMESTAMPING kernel socket option and the
wireguard virtual interface doesn't support that. Moreover, I need
this working with hardware timestamping, and right now I can't even
get it working with software timestamping.
Would it even be possible to get this working? Anyone got any tips?
Can I somehow make the Wireguard virtual interface mirror the physical
NIC's capabilities?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Running PTP (Precision Time Protocol) over Wireguard
2021-12-14 17:15 Running PTP (Precision Time Protocol) over Wireguard Antonio Teixeira
@ 2021-12-20 17:00 ` Jason A. Donenfeld
0 siblings, 0 replies; 2+ messages in thread
From: Jason A. Donenfeld @ 2021-12-20 17:00 UTC (permalink / raw)
To: Antonio Teixeira; +Cc: WireGuard mailing list
I've never used these APIs and I wasn't aware it was something that
needed explicit support inside of virtual drivers. What happens when
you try to use it? Are the timestamps bogus or does it return an
error? If the former, in what way are they bogus? If the latter,
what's the error?
Jason
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-12-14 17:15 Running PTP (Precision Time Protocol) over Wireguard Antonio Teixeira
2021-12-20 17:00 ` Jason A. Donenfeld
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