Yes, you can open the same ports on different IP addresses.
Yes, you can open the same ports on different IP addresses.
ROUTER: Check if you can configure the same ports across multiple devices or networks. For example, set up Teamspeak ports on two PCs so that if one connection drops, the other remains active.
Yes, it is possible to modify the port for the 2nd team's server.
Upon receiving a new connection, your router understands just its own IP address and the specific port it was sent to. This limits its ability to choose a particular local IP for the incoming link, which is why it assigns the connection to a single internal port and address.
There’s nothing possible to set up a backup server in case the primary PC fails.
They want high availability and failover load balancing. Set up a load balancer like HAProxy, Nginx, Envoy or Traefik. Direct all traffic through it, which will route requests to the appropriate backend.