I'm trying to create a network interface on Host A within the 192.168.1.0/24 subnet so it can communicate with Host C through Host B using an SSH tunnel. Here's the situation: Host A is on network 1 (192.168.0.0/24) and needs access to network 2 (192.168.1.0/24). So far, I've been able to ping Host B from Host A and vice versa via the tun tunnel, using the ssh -w option. I've also set up routing on Host A to send packets intended for network 2 to Host B, which should forward them to Host C. The issue arises when Host C sends out ARP requests for Host A's IP address, and that's where the communication fails.
I've configured the firewall to allow forwarding by default, but it feels like I'm missing a small detail. The end goal is to operate high-quality video camera equipment remotely, but I need help figuring out what's going wrong in this setup.
3 Answers
It seems odd that Host C is making ARP requests. Since it has a layer 3 connection to Host A, you shouldn't have to deal with ARP issues. Have you confirmed that both Host A and Host C have correct static routes set up for the respective networks? Also, are you sure that the tun interface settings are properly configured on Host B?
You mentioned a complex camera setup and needing a responsive connection instead of using tools like RDP or VNC. Have you thought about setting up a VPN with NAT? That could help manage the traffic and allow you to route connections back through the VPN, simplifying the process a bit. It might be more straightforward than it seems.
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