I have an old WRTP54G from Vonage and wanted to unlock it so I can setup my own VoIP with Asterisk. But in order to do that the instructions indicated I needed to have a tftp server setup using windows and that just looked like a lot of setup/work. So I looked at how to do it on a Mac and this is what I found.
You can start and stop tftp using the following commands
sudo launchctl load -F /System/Library/LaunchDaemons/tftp.plist
sudo launchctl unload /System/Library/LaunchDaemons/tftp.plist
tftp files are stored in /private/tftpboot
Now That was Easy!
I did however still need a windows vbox to run cyt35.exe and I don't have the code or know what it does so I couldn't hack it from the mac. Maybe I'll dig into it some day.
TFTP [source]
WRTP54G Unlock [soruce]