Notes on how to setup the router
We have a Linksys WRT54GL WiFi router. The hardware revision is WRT54GL v1.1.
We will be using DD-WRT as router software. Take a look on their wiki for more information on flashing the firmware. Remember the router username and password
Instead of the default SSID, we would like to set the SSID that people associate with the workshop.
To change it go over to Wireless > Basic Settings and change the Wireless Network Name (SSID) to boiding_workshop.
The password for access to the network can be set at Wireless > Security. The security mode should be set to WPA2 Personal.
The WPA Algorithms can be set to TKIP, and the WPA Shared Key to 2boid||!2boid.
In order easily connect with the workshop server, we should give it a static IP-address.
You can look up the MAC address on Linux systems with the following command
cat /sys/class/net/*/address
Cross-referencing this with the connected devices on the router. The next command is hostname, which will provide you with the necessary information.
In the router, go over to Services > Services. In the DHCP server section add a static lease with the corresponding MAC address and hostname. Our goto IP-address is 192.168.1.101
A healthy maximum number of teams is 20. It is not unlikely that each team will connect 4 devices, getting a total of 80 connected devices. So we are going to set the maximum number of DHCP users to 100.
Go to Setup > Basic Setup and in the section Network Address Server Settings set the Maximum DHCP Users to 100.
For the participants server will reach out to the workshop server on port 2643, which spells boid on a phone keypad. We therefor should allow traffic on that port
sudo ufw allow 2643