I was just wondering yesterday if it'd be possible to have a tailscale client, or multiple tailscale clients in their own network namespaces, that could connect to multiple networks.
The slightly tricky part would be managing a local NAT that blends the two networks, and also does MagicDNS to answer on those NATed IPs. If routes conflicted, I guess you'd have to pick one?
yeah that's kinda what it does. It sets up two tsnet servers connected to two different tailnets and exposes them through a shared TUN device. It does the magic of allocating safe IPs to each host so that they don't overlap and does some leasing so that IPs aren't accidentally reassigned. It also does the MagicDNS thing so that DNS returns the "effective IP".
I wanted it to work on macOS so couldn't rely on network namespaces.
Hey ! I see Tailscale Funnels as maybe a good replacement for Ngrok, but not for Cloudflare Tunnels.
Your Funnels are in Beta, MUST use your tailnet’s domain name, have bandwitdh limits, no failover and no load balancing. If my website goes down, I close shop. Cloudflare Tunnels are just way more mature for production loads. CF Tunnels technically don't have load balancing, but if you set multiple Tunnels with the same ID, you get some sort of load balancing AND failovers if a tunnel goes down. And after that, they have a paid Load Balancer option.
Even for internal admin portals, the mention that "Traffic over Funnel is subject to bandwidth limits." with absolutely no defined numbers is just a turn off. If you added a number to that, like a limit of MBPS or GB/Month of transfer, it would be something I can bring to my colleagues, something we can discuss and weight on. For now, with no number, it's just a threat.
Everything else about Tailscale is chefskiss tho ;)