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Destination Unreachable #64

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will-riley opened this issue Jan 28, 2020 · 2 comments
Closed

Destination Unreachable #64

will-riley opened this issue Jan 28, 2020 · 2 comments
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@will-riley
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Trying to connect from OSX1 to linux - invitation refused/port unreachable.

Debug messages on linux side show the LNX1 system up and running:

[1580190886] [tid=140671977516416] INFO: Adding service 'LNX1._apple-midi._udp' [1580190886] [tid=140671977516416] DEBUG: net_socket_loop_init: pipe0=10 pipe1=11 [1580190886] [tid=140671855884032] DEBUG: net_socket_alsa_listener: Thread started [1580190886] [tid=140671855884032] DEBUG: raveloxmidi_alsa_init: poll_descriptor[0]=4 [1580190887] [tid=140671977510656] INFO: Service 'LNX1' successfully established.

But LNX1 refuses invitation to connect in OSX midi networking setup (read from LNX1 side, it's hitting the interface):

(Wireshark summary)
06:33:49.507209656 osx1.local lnx1.local AppleMIDI 83 Invitation: peer = "OSX1"
06:33:51.508601022 lnx1.local osx1.local ICMPv6 126 Destination Unreachable (Port unreachable)

No firewalling present. UDP listeners are active on LNX1:

# netstat -ln
udp 0 0 0.0.0.0:5004 0.0.0.0:*
udp 0 0 0.0.0.0:5005 0.0.0.0:*
udp 0 0 0.0.0.0:5006 0.0.0.0:*

Any clues appreciated.
Many thanks for the software!

@ravelox ravelox self-assigned this Jan 28, 2020
@ravelox
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ravelox commented Jan 28, 2020

Because I see ICMPv6 in your wireshark output, I'm thinking that you are seeing the issue where avahi is still configured to publish the AAAA records over IPv4. Please take a look at item 1 in FAQ.md. This gives details on what configuration changes you need to make.

Thanks

Dave

@will-riley
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Good ol' FAQ #1. Sweet. That did it, thank you.

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