I resolved it when I read this: http://asterisk-support.ru/question/61578/asterisk-v13-unable-to-send-packet-address-family/ and then followed this https://community.rackspace.com/products/f/25/t/5110 to explicitly prefer IPv4 over IPv6.
What I don't understand is that while Ubuntu has IPv6 of course, the VPS host is set to V6 disabled. and as far as I am aware, and my ITSP doesn't have IPv6, so I just can't figure out why two IPv4 systems are getting IPv6 "pollution" as it were. And why now??! Anyway, that's what fixed it for me. Thanks! On 4 November 2016 at 21:31, Jonathan H <lardconce...@gmail.com> wrote: > Two VPSs. Identical setups with the exception of the extension. > > Same version of everything, Asterisk 14.1, Ubuntu 16.10, same firewall > rules and so on - box 2 was cloned from box 1. > > Both VPSs run in the same datacentre. > > Suddenly, after weeks of OK, I'm getting lots of this on ONE box only: > > [Nov 4 21:23:04] NOTICE[1468]: res_hep.c:466 hep_queue_cb: Unable to > send packet: Address Family mismatch between source/destination > [Nov 4 21:23:04] NOTICE[1468]: res_hep.c:466 hep_queue_cb: Unable to > send packet: Address Family mismatch between source/destination > > Googling this brings up something about IPv6, but my VPS is not IPv6 > enabled, and nor is my ITSP, who can't think of why this is happening. > > It doesn't appear to be adversely affecting call quality, but it's > making the console a bit busy. I know I can hide it, but I'd be > interested to know if there's anything I can do to diagnose WHY this > is happening. > > Thanks >
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