Add footnote and proviso regarding two links from the same ISP

This commit is contained in:
Tom Eastep 2009-12-11 07:21:42 -08:00
parent 9988cfb619
commit 6a62ced2c6

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@ -105,8 +105,11 @@
<title>Overview</title>
<para>Let's assume that a firewall is connected via two separate
Ethernet interfaces to two different ISPs as in the following
diagram.</para>
Ethernet interfaces to two different ISPs.<footnote>
<para>While we describe a setup using different ISPs in this
article, the facility also works with two uplinks from the same
ISP.</para>
</footnote> as in the following diagram.</para>
<graphic align="center" fileref="images/TwoISPs.png" valign="middle" />
@ -1180,7 +1183,10 @@ shorewall 2 2 - eth0 192.168.1.254 track,balance=2,optional<
<title>Gateway Monitoring and Failover</title>
<para>There are a couple of options available for monitoring the status
of provider links and taking action when a failure occurs.</para>
of provider links and taking action when a failure occurs. Both of these
options assume that each provider has a unique nexthop gateway; if two
or more providers use the same gateway router then neither option is
suitable.</para>
<para>You specify the <option>optional</option> option in
<filename>/etc/shorewall/interfaces</filename>:</para>