<HTML ><HEAD ><TITLE >Kernel network parameters </TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Linux Advanced Routing & Traffic Control HOWTO" HREF="index.html"><LINK REL="PREVIOUS" TITLE="Hashing filters for very fast massive filtering" HREF="lartc.adv-filter.hashing.html"><LINK REL="NEXT" TITLE="Reverse Path Filtering" HREF="lartc.kernel.rpf.html"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Linux Advanced Routing & Traffic Control HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="lartc.adv-filter.hashing.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="lartc.kernel.rpf.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="LARTC.KERNEL" ></A >Chapter 13. Kernel network parameters </H1 ><DIV CLASS="TOC" ><DL ><DT ><B >Table of Contents</B ></DT ><DT >13.1. <A HREF="lartc.kernel.rpf.html" >Reverse Path Filtering</A ></DT ><DT >13.2. <A HREF="lartc.kernel.obscure.html" >Obscure settings</A ></DT ><DD ><DL ><DT >13.2.1. <A HREF="lartc.kernel.obscure.html#AEN1252" >Generic ipv4</A ></DT ><DT >13.2.2. <A HREF="lartc.kernel.obscure.html#AEN1433" >Per device settings</A ></DT ><DT >13.2.3. <A HREF="lartc.kernel.obscure.html#AEN1490" >Neighbor policy</A ></DT ><DT >13.2.4. <A HREF="lartc.kernel.obscure.html#AEN1546" >Routing settings</A ></DT ></DL ></DD ></DL ></DIV ><P > The kernel has lots of parameters which can be tuned for different circumstances. While, as usual, the default parameters serve 99% of installations very well, we don't call this the Advanced HOWTO for the fun of it!</P ><P >The interesting bits are in /proc/sys/net, take a look there. Not everything will be documented here initially, but we're working on it.</P ><P >In the meantime you may want to have a look at the Linux-Kernel sources; read the file Documentation/filesystems/proc.txt. Most of the features are explained there.</P ><P >(FIXME)</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="lartc.adv-filter.hashing.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="lartc.kernel.rpf.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Hashing filters for very fast massive filtering</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Reverse Path Filtering</TD ></TR ></TABLE ></DIV ></BODY ></HTML >