On 2022-05-19, Jordan Geoghegan <jor...@geoghegan.ca> wrote: > I've run pfsync + CARP for a number of years now. One interesting > "gotcha" I discovered when building an IPv6-only test network was that > pfsync does not work in an IPv6-only environment. I tried both unicast > and multicast configurations to no avail. When pfsync has a parent > interface that only has an IPv6 address assigned (ie no IPv4 at all), no > pfsync traffic transits the interface. Just thought I'd share this > little tidbit since you were looking for edge cases and gotchas and > since IPv6 support (or lack thereof) is not mentioned in the manpage.
That sounds like a bug not an "edge case". To my knowledge nobody ever reported that, consider writing it up for bugs@.
