Hi there, Then I would advise to try to: bridge NIC1 and NIC2, then configure the resulting bridge interface br0 to 192.168.100.101/24 configure 'device 1' to 192.168.100.102/24 or some other IP address that does not overlap/conflict with any other device on the 192.168.100.0/24 network. This setup should present "one interface" to the 192.168.100.0/24 network, pulling 'device 1' into the network as it were. I'm not sure if you have to enable ip forwarding in case you create a bridge, my experience with bridge (both networking and card wise) is limited. Groetjes, Btw, there has to be a reason why PC1 and the gateway/router in the red box are not able to be changed 😉 Perhaps the people that set it up that way were actively trying to prevent fanning out into different additional networks. (I know many employers do not allow this on their office network for example, for very good reasons...)

Well I was able to build by changing the docker image with this option : DOCKER_ARMBIAN_BASE_IMAGE=ubuntu:jammy The two other images (debian:bookworm and ubuntu:noble) simply do not work

Hey Sam, busy week so only getting around to replying - yes there are pre-built images for it but we took them down because I wasn't happy with the state it was in. We have a patch we're cleaning up that add the packages for GPU Acceleration and Wifi/BT that we're going to merge today/this weekend so I will re-enable the image generation and it will show up under Supported boards tomorrow/Sunday. If you do end up getting it and trying it out feel free to reach out here or on discord and let me know if you run into anything.

sha256sum Armbian_25.5.1_Rock-5b_noble_vendor_6.1.115_gnome_desktop.img.xz 1b5b3f8e9f136772dd0e3b80990f7cd2ed305e34db7510ea4f4fd83d3f40b5f0 cat Armbian_25.5.1_Rock-5b_noble_vendor_6.1.115_gnome_desktop.img.xz.sha 8ebcc156f53bf8a826bba4291e8ff3fce8037be64c02b4ca59f6befbe361586c xz -t Armbian_25.5.1_Rock-5b_noble_vendor_6.1.115_gnome_desktop.img.xz xz: Armbian_25.5.1_Rock-5b_noble_vendor_6.1.115_gnome_desktop.img.xz: Unexpected end of input I tried many mirrors. It has been like this since it's May release. Torrent download also fails keeps rejecting fragments presumably due mismatching checks. Is suspect the file got corrupted somehow

endgoal is Device 1 is reachable from PC1 - with PC1 settings all can NOT be changed and ideally Device1 on completely different subnet...