This section describes the use of VNET+. You are already ``using'' VNET+ if you send and receive ICMP packets, use tcpdump or RAW sockets. This section describes steps you may have to carry out in order for your program to work on PlanetLab in the same way as it is expected to work on a normal Linux box. If your issue is not addressed here, then contact us at users@lists.planet-lab.org and we will add it.