Port forwarding configuration for Borderlands online play

While hosting public Borderlands games, a few people have told me they’ve had trouble hosting games that other players could join.

I opened the following ports on my router and was able to host public games:

  • 7777 (TCP, UDP)
  • 27900 (UDP)
  • 28900 (TCP)
  • 28902 (TCP, UDP)
  • 28910 (UDP)

Consult your router’s documentation for instructions on opening ports as methods will differ according to router manufacturer and interface.

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