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add note about MacTCP & large subnets

Benjamin Krein 2023-12-10 21:24:22 -05:00
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Dayna-Port-SCSI-Link.md

@ -127,6 +127,8 @@ There are four ways to accomplish this:
Note that by default, the DaynaPORT device will launch with parameters 'eth0,wlan0' meaning it will attempt to use eth0 first, and if unavailable then wlan0. Also, note that the default IP address / netmask is 10.10.20.1/24. So for most usecases, if you follow the automated process and use the default values, you don't have to specify any parameters when attaching the DaynaPORT device and it should work out of the box.
>**_NOTE:_** If using custom subnets it is very likely that MacTCP will have problems with subnets larger than a `/24` for handling **_INBOUND_** connections (eg, when the Macintosh is serving a BBS). It has been observed that when using a `/16` connections to the BBS running on a MacTCP setup in one `/24` range of the broader `/16` (`192.168.3.10`) that responses back to a client in a different `/24` subset of the same broader network (`192.168.1.20`) would fail. Switching the client to be in the same `/24` range (`192.168.3.20`) resolved the communications issues. While this isn't conclusively known to be the problem, it is nevertheless worth keeping in mind if you're experiencing connection issues.
Ex. with piscsi / wired / DHCP, PiSCSI *not* running as a service
```sudo piscsi -ID 6 -t scdp interfac=eth0```