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Update to IPv6 doc

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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@9389 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
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teastep 2009-02-01 18:35:06 +00:00
parent 0e49b9ced8
commit 555636bff8
2 changed files with 35 additions and 13 deletions
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9
docs/IPv6Support.xml
View File

@ -48,7 +48,8 @@
<orderedlist>
<listitem>
<para>Kernel 2.6.25 or later.</para>
<para><ulink url="FAQ.htm#faq80a">Kernel 2.6.25 or
later</ulink>.</para>
</listitem>
<listitem>
@ -493,15 +494,15 @@ ACCEPT net:wlan0:&lt;2002:ce7c:92b4::3&gt; tcp
<itemizedlist>
<listitem>
<para>Shorewall-common 4.3.4 or later.</para>
<para>Shorewall-common 4.2.4 or later.</para>
</listitem>
<listitem>
<para>Shorewall-perl 4.3.4 or later.</para>
<para>Shorewall-perl 4.2.4 or later.</para>
</listitem>
<listitem>
<para>Shorewall6 4.3.4 or later.</para>
<para>Shorewall6 4.2.4 or later.</para>
</listitem>
</itemizedlist>

39
docs/MultiISP.xml
View File

@ -1082,8 +1082,10 @@ shorewall 2 2 - eth0 192.168.1.254 track,balance=2,optional<
monitoring script <filename>swping</filename>. The
<filename>swping</filename> file is available in the main directory
contained in the Shorewall-common tarball and is included in the
Shorewall-common documentation directory on the Shorewall-common
RPM.</para>
Shorewall-common documentation directory on the Shorewall-common RPM.
The script is inspired by Angsuman Chakraborty's <ulink
url="http://blog.taragana.com/index.php/archive/how-to-load-balancing-failover-with-dual-multi-wan-adsl-cable-connections-on-linux/">gwping</ulink>
script.</para>
<para>For those not on 4.2.6 yet, the script may be downloaded from
<ulink
@ -1097,7 +1099,19 @@ shorewall 2 2 - eth0 192.168.1.254 track,balance=2,optional<
</important>
<para>The script should be copied to a directory on root's PATH such as
<filename>/usr/local/sbin/.</filename></para>
<filename>/usr/local/sbin/</filename>.</para>
<para>The script works by sending pings to <emphasis>target</emphasis>
IP addresses through each external interface. These targets must not
depend on any routes other than those that are present in the main
routing table. That ensures that a route is available to the target even
when the target's interface is not working and Shorewall has omitted it
from the routing configuration. An interface is assumed to be
<firstterm>up</firstterm> when a specified number (UP_COUNT) of
consecutive ping operations succeed. Similarly, an interface is assumed
to be <firstterm>down</firstterm> when a specified number (DOWN_COUNT)
of consecutive ping operations fail. You can specify the interval
between pings (PING_INTERVAL).</para>
<para>The script monitors two interfaces but it is a trivial exercise to
extend it to more than two. At the top are a number of variables to
@ -1108,10 +1122,11 @@ shorewall 2 2 - eth0 192.168.1.254 track,balance=2,optional<
#
FAMILY=4
#
# The commands to run when the status of a line changes. Both commands will be executed.
# The commands to run when the status of a line changes. Multiple commands may be specified
# when separated by semicolons (";")
#
COMMANDA=
COMMANDB="ip -$FAMILY route ls"
COMMAND=
...
#
# Interfaces to monitor -- you may use shell variables from your params file
@ -1142,7 +1157,7 @@ UP_COUNT=5
#
DOWN_COUNT=2</programlisting>
<para>If you leave COMMANDA empty, the script sets its value
<para>If you leave COMMAND empty, the script sets its value
automatically depending on whether Shorewall-lite is installed.</para>
<para>When the status of an interface changes:</para>
@ -1151,8 +1166,9 @@ DOWN_COUNT=2</programlisting>
<listitem>
<para>For each interface, a file is placed in /etc/shorewall to
record the status of the interface: either 0 (UP) or 1 (DOWN). The
name of the file is<emphasis> interface</emphasis>.status where
<emphasis>interface</emphasis> is the interface (e.g.,
name of the file is
<filename><replaceable>interface</replaceable>.status</filename>
where <replaceable>interface</replaceable> is the interface (e.g.,
<filename>eth0.status</filename>).</para>
</listitem>
@ -1212,6 +1228,11 @@ fi</programlisting></para>
run two copies; one for IPv4 and one for IPv6.</para>
</listitem>
<listitem>
<para>It can only detect the gateway for interfaces managed by
dhcpcd.</para>
</listitem>
<listitem>
<para>It's method of determining whether an interface is up or down
is crude. You will normally specify the default gateway for each