radiusd -X

[Alan Buxey]

Hi,
> It means some other process is already listening on that port. The
> most usual case is that you already have radius running.
> 
> Try running:
> ps aux | grep radius
> 
> The output should say if you already have radius running.

aye. 

netstat -anp

etc should also show you whats on port 1812 too. most likely
the radiusd service already. if so

killall radiusd

or use your OS service command to stop it eg /etc/init.d/radiusd stop
or service radiusd stop

alan