/*!\page ppp The PPP KitsThe PPP stack is a kernel module that interfaces with the network stack.Thanks to its modular nature new protocols and extensions can be added withouthaving to recompile the PPP stack.- \ref kernelppp- \ref userlandpppThe kernel API is mostly intended for developers who want to write extension modules,but you can also create and control PPP interfaces from within your own kernel modules.You should use the userland API for your applications because it exports helperclasses for accessing the kernel module from userland. Alternatively, you can talkto the PPP interface manager directly through an \c ioctl() interface.*/