198 lines
3.5 KiB
HTML
198 lines
3.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<HTML
|
|
><HEAD
|
|
><TITLE
|
|
>( Upgrades ) - I've just upgraded to the x.y.z kernel, why isn't IP
|
|
Masquerade working?</TITLE
|
|
><META
|
|
NAME="GENERATOR"
|
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
|
|
REL="HOME"
|
|
TITLE="Linux IP Masquerade HOWTO"
|
|
HREF="index.html"><LINK
|
|
REL="UP"
|
|
TITLE="Frequently Asked Questions"
|
|
HREF="faq.html"><LINK
|
|
REL="PREVIOUS"
|
|
TITLE="( IPTABLES vs. IPCHAINS vs. IPFWADM ) - Why do the 2.4.x, 2.2.x,
|
|
and 2.0.x kernels use different firewall systems?"
|
|
HREF="iptables-vs-ipchains-vs-ipfwadm.html"><LINK
|
|
REL="NEXT"
|
|
TITLE="( EQL ) - I need help with EQL connections and IP Masq"
|
|
HREF="eql.html"></HEAD
|
|
><BODY
|
|
CLASS="SECT1"
|
|
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 IP Masquerade HOWTO</TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="left"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="iptables-vs-ipchains-vs-ipfwadm.html"
|
|
ACCESSKEY="P"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="80%"
|
|
ALIGN="center"
|
|
VALIGN="bottom"
|
|
>Chapter 7. Frequently Asked Questions</TD
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="right"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="eql.html"
|
|
ACCESSKEY="N"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"></DIV
|
|
><DIV
|
|
CLASS="SECT1"
|
|
><H1
|
|
CLASS="SECT1"
|
|
><A
|
|
NAME="UPGRADES"
|
|
></A
|
|
>7.42. ( Upgrades ) - I've just upgraded to the x.y.z kernel, why isn't IP
|
|
Masquerade working?</H1
|
|
><P
|
|
>There are several things you should check assuming your Linux IP Masq box
|
|
already has proper connections to the Internet and your LAN:</P
|
|
><P
|
|
> <P
|
|
></P
|
|
><UL
|
|
><LI
|
|
><P
|
|
>Make sure you have the necessary features and modules are compiled and loaded.
|
|
See earlier sections for details.</P
|
|
></LI
|
|
><LI
|
|
><P
|
|
>Check <TT
|
|
CLASS="LITERAL"
|
|
>/usr/src/linux/Documentation/Changes</TT
|
|
> and make sure you
|
|
have the minimal requirement for the network tools installed.</P
|
|
></LI
|
|
><LI
|
|
><P
|
|
>Make sure you followed all of the tests in <A
|
|
HREF="testing.html"
|
|
>Chapter 5</A
|
|
> of the
|
|
HOWTO. </P
|
|
></LI
|
|
><LI
|
|
><P
|
|
>Make sure you are using the proper firewall tool for you kernel be it IPTABLES,
|
|
IPCHAINS, or IPFWADM.</P
|
|
></LI
|
|
><LI
|
|
><P
|
|
>If you are doing PORTFW functionality, make sure you use the correct tool
|
|
for your kernel version. IPTABLES has everything built-in, IPCHAINS requires
|
|
the use of IPMASQADM, and IPFWADM reaquires the use of IPPORTFW or IPAUTOFW.
|
|
This is completely covered in <A
|
|
HREF="forwarders.html"
|
|
>Section 6.7</A
|
|
>.</P
|
|
></LI
|
|
><LI
|
|
><P
|
|
>Go through all setup and configuration again! Usually, it's just a typo or
|
|
a simple mistake you are overlooking.</P
|
|
></LI
|
|
></UL
|
|
> </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="iptables-vs-ipchains-vs-ipfwadm.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="eql.html"
|
|
ACCESSKEY="N"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
>( IPTABLES vs. IPCHAINS vs. IPFWADM ) - Why do the 2.4.x, 2.2.x,
|
|
and 2.0.x kernels use different firewall systems?</TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="faq.html"
|
|
ACCESSKEY="U"
|
|
>Up</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
>( EQL ) - I need help with EQL connections and IP Masq</TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
></BODY
|
|
></HTML
|
|
> |