Half-Saint wrote:[...]
what kit did you get along with the Jornada? I sold my Jornada back in 2016 but I think I can give you some pointers. Getting on-line will be a problem as Jornada doesn't support WPA2. You will have to setup a separate router with WEP and keep it on a different subnet so as not to compromise your other computers.
Er, nope, neither WEP nor another subnet will help at all.
WEP is actually worse than no encryption at all, and can be cracked in <30sec with no skills, so you might as well have an open network. If you set AP isolation enabled on that SSID you reduce the attack surface on the Jornada significantly. To protect the rest of your network you need more than just a different subnet, anyone can sniff packets and figure out what range your other devices are using. To isolate the SSID it needs to be on a different VLAN. If your setup doesn't support VLANs, and you only use a single router/AP for WiFi, you can use the Guest network - under the hood that is a separate VLAN after all. However if you do that, no communication will be possible between the Jornada and the rest of your network, which sort of spoils the whole point of the device.
Instead, you need a router with firewall that can selectively allow certain types of traffic between the two VLANs. It's possible to get it all running safely, but it requires non-trivial knowledge and possibly other hardware (or at least firmware on the hardware) than you already have.