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Chapter 1.
Kernel Network Configuration
"All roads lead to Rome ," the saying goes. Something
similar is true of Linux networking, except that in this case, Rome is the Linux kernel. Sooner or later,
all network traffic passes through the kernel. Given that not all computers or
networks are identical, the Linux kernel includes several options you can set
to optimize a system for your specific needs. You can set some of these options
by passing parameters to the kernel, either during the boot process or after
the system has booted, and many of these cases are covered in subsequent
chapters of this book. In other cases you must recompile your kernel to
activate a needed option or to deactivate one that might degrade your system's
performance.
This chapter is devoted to discussing these
kernel configuration options. First up is a discussion of kernel configuration
procedures. Next is information on network protocol options, such as TCP/IP features,
network filters, and support for non-TCP/IP protocol stacks. Next comes a
discussion of Linux's drivers for various types of network hardware. The
chapter concludes with a brief overview of the process of kernel compilation
and use.
NOTE
align=left border=0> This chapter does not attempt to teach you
everything you need to know to compile a kernel; instead, it focuses on the
networking options in the kernel. The "
configuration and use, but if you're new to kernel compilation, you may want
to consult the Linux Kernel HOWTO (
