Comment by miki123211

Re: Tailscale and speeds, I wish Tailscale had a better story about relay / DERP flexibility.

Assume we have devices a, b and c, which are basically in different segments of the same network and have nice pings to each other. We're trying to ssh from a to c, but NAT traversal isn't possible. Both a and c can do NAT traversal to b.

Instead of a going all the way over to the DERP in WAW and then back to c again, it could go a->b->c instead.

In my experience, DERPs are pretty slow and have high latency (compared to not going off-network at all), but there's no real way to avoid them if everything you have is behind some sort of NAT, even if some of them are trivially traversable (think "devices can do UPNP").