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Unread 15-01-2015, 23:07
msonnier msonnier is offline
Engineering Mentor
FRC #2992 (SS Prometheus)
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Re: Trouble resolving mDNS via Wi-fi on Windows 7 VM

Finally a question on here in something in my professional field :-)

We at Team 2992 were having the same problem and it was definitely related to IPv6 config on the DLink router. However, switching the config to Autoconfig SLAAC/DHCPv6 did seem to help but still had occasional failures on mDNS. Seems to be some race condition w/ the RoboRIO or W7 or radio on boot as to whether it works or not.

Doing a "ping roborio-xxxx.local" command from command prompt on W7 was producing a ping return showing IPv6 addresses instead of the expected IPv4 10.x.x.x. When this occurred neither Eclipse nor DS would connect.

After some playing around w/ radio config for a while -- we found that disabling IPv6 in Control Panel -> Network & Internet -> Change Adapter Settings -> Wireless Network Connection -> Properties seems to work reliably.

I haven't tested this on a Mac but I would image hard disabling IPv6 on the Mac or Mac VM would work.

When I have more time I will crank up Wireshark and do packet captures on what is happening.

Presumably one could also go into network config on the RoboRIO and turn off IPv6 in the linux config.

Regards
Mike

Mentor Team 2992

CCIE #4885
Cisco Systems, Inc.
 


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