External Network Access to Device A Breaks Functionality Dependent on LAN-Only Devices B and C

[nuclearutsuho]

I currently have three devices, A, B, and C, in my studio. Only device A has an external internet connection, while devices B and C are only connected to the local network. Within the local network, all three devices (A, B, and C) can function normally. Now, when I use device D from an external network to access device A, I am unable to directly connect to devices B and C, which causes plugins to stop working. Is there any solution to resolve this issue?

[robertvoy]

B and C need to be able to communicate with D. If B and C aren't connected to the internet, they have no way of communicating with D, given that D is outside of the local network.

You can set up an ssh tunnel or reverse proxy.

The ssh tunnel will be easiest. When you’re working remotely, open tunnels from D to B/C via A. Use a LLM to guide you through this.

[nuclearutsuho]

Thank you for your suggestions. Due to company policies, I cannot use SSH tunneling. I am now able to access the system normally via a reverse proxy, but there are still some minor issues.

My Device A (ComfyUI) uses port 6000 on the local network and is accessed via port 46000 through the reverse proxy. When I connect from Device D, the master device port is automatically set to 46000 and cannot be changed. After starting a task, all three devices (A, B, and C) can generate images normally, but Devices B and C try to connect to port 46000 instead of port 6000. This causes Device A to be unable to receive the images. The internal port and reverse proxy port must be set to the same value for it to work.

I am accessing the three devices via the reverse proxy at IP:46000-46002. In Device D, both worker devices (B and C) are displayed as "local" devices. When I access from within the local network on Device A, the recorded IP addresses for the two worker devices show as the reverse proxy's IP address, which prevents normal operation and requires reconfiguration.

Previously, when using the distributed extension in WebUI, all connections were handled through Device A, and Devices B and C did not need to connect directly to Device D. I'm curious: when using the A-B-C cluster from an external network, will other data be relayed through Device D? Could the speed of the external network affect the performance of the local devices?

[robertvoy]

Seems like you might need a custom solution. Feel free to reach out to me via email (on my profile).