These instructions are for QUT students. I do not know if they will work for QUT staff. Use at your own risk.
You need ‘vpnc’ program (install it with your pkg mgr). Then download off-campus.conf file and save it to /etc/vpnc/ directory. You could name it default.conf if it will be your only vpnc connection. The contents should begin with at least:
IPSec gateway sas.qut.edu.au IPSec ID qut IPSec secret qutaccess
As root run vpnc off-campus of just vpnc if you renamed it to default.conf. Enter username/password when prompted.
In Kmail, you setup IMAP connection using SSL, username/password and port 993 to host mail.qut.edu.au. SMTP uses NO ecryption, but authentication method is LOGIN (not PLAIN) and port 25 on host mail.qut.edu.au.
To exit vpnc type vpnc-disconnect as root.
I hope this helps someone.