Re: [Freemint-discuss] Weird problem with MiNTnet

[Jo E. S. <jo...@on...>]

Ok, haven't had much time to spend on real hardware the last month, but sat down Friday night
and tried to figure out what the problem was. I suspected either a Linux/Windows update, or a
router update. Most likely the latter, as the problem started at the exact same time on all my
computers.

Turns out that it's a routing issue with my router, and probably my MiNTnet configuration. When I
access other devices on my LAN from MiNTnet, all LAN traffic goes via the router - which is set up
as the default route. For some unknown to me reason (I know very little about network configuration)
this suddenly caused all my non-MiNTnet machines to not be able to communicate with my MiNTnet
machines. Looks like packets where received by MiNTnet, but the response never reached the other
machine. Except if that machine runs MiNTnet as well.

Adding a route specifically to my LAN solved the issue. However, the dhclient script does not do this
so I can't use DHCP anymore. Or I probably could if I modified the dhclient script, but that involves
another thing I don't know much and don't like - shell scripts.

Jo Even



On Thu, 17 Apr 2025 19:02:57 +0000, Jo Even Skarstein via Freemint-discuss <fre...@li...> wrote:

>> I've ran into a weird problem with MiNTnet. Suddenly none of my Ataris running MiNTnet are available to other devices on my LAN, except the router. Networking between my Ataris works normally, and I can ping my other devices (PC's running Linux or Windows) from my Ataris but not vice versa. I can't access any servers on my PC's from my Ataris, but any external servers (ftp, http, mail...) works fine. This happened suddenly and at the same time for all my Ataris, so the problem is not caused by any changes on the Atari side.
>>
>> What's strange is that if I boot TOS and run UIPtool instead of MiNT/MiNTnet everything works fine. The Atari is assigned the same IP as under MiNTnet (using DHCP in both cases), but with UIPtool running I can access the Atari from any device on my LAN.
>>
>> Any idea on what's going on?
>>
>> Jo Even
>>
>>
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