[SOLVED] After replacing wifi router, one penguin connects only ipv6
Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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I am confused; which machine is the culprit? One of the 2 routers, or one of the two laptops?
I think you need to test both laptops.
ping also has options to specifically ping ipv4 or ipv6; ping6 might even be a separate application.
I am glad that I am not the only one who got confused.
As the old router is kaput, I cannot check with the old one.
The laptop, which connects only IPv6, also connects only IPv6 on some other wifi setup.
It looks like that laptop is to blame. (I guess) I am sure that the laptop used to work, it is this one and I remember I used that wifi. So, system clean installed!!
Several apologies.
The penguin was to blame. (not router related at all.)
It was clean install, but not quite. (several settings migrated from old ones.)
Culprit was
/etc/network/interfaces
It was set up for wpa roaming, (at least so intended)
For some reason, the line "iface default inet dhcp" was commented out.
Uncommenting this line, and adjust allow-hotplug did the job. BINGO! Happy Penguin!
Confusing point was that wired network had no trouble with this wrong(?) config file.
cheers
Last edited by kaz2100; 09-12-2019 at 11:01 PM.
Reason: missing line
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