Cables are labelled at both ends with a code like XYn, such that:
X and Y could be one of
- H for Hacklab Upstairs
- S for Server Room
- B for Backstage Upstairs
So the cable "SB1" will go from the server room to the backstage upstairs router area.
 IP Addresses
The current (temporary) setup is a NAT network of 192.168.56/21 with a public IP of 188.8.131.52. This will change when we have real network setup.
All DebConf access points should be advertising the SSID debconf with the passphrase debconf11.
For more information on technical details, or discussion of issues, see DebConf11/Wireless