On Sat, Mar 13, 2021 at 11:34:29AM +0000, Stuart Henderson wrote:
> Nothing changed in umb(4) since 6.8-release. The change last year was
> between 6.7 and 6.8 ("IPv6 is no longer on by default. It must be
> enabled with "inet6 eui64").It seems that the issue I had was not related to OpenBSD but due to bad configuration of the modem. What I failed to mention in my inital email was that there were two modems (same model and firmware) on two machines: one running -current, the other 6.8-release. I wrongfully assumed that it had to do something with the OS. Apparently only one of the modems had a setting set for inet4 AND/OR inet6 that is limiting or not overwritten by umb or via MBIM. Both should have had the same factory settings, colour me surprised. After issuing an appropriate AT-command I can now also get IPv6 on my -current machine.
