If the message is relayed it is accepted through any interface. The giaddr
set by the relay agent is used to select the subnet for the client.
</para>
+ <para>
+ It is also possible to specify a relay IPv4 address for a given subnet. It
+ can be used to match incoming packets into a subnet in uncommon configurations,
+ e.g. shared subnets. See <xref linkend="dhcp4-relay-override"/> for details.
+ </para>
<note>
<para>The subnet selection mechanism described in this section is based
on the assumption that client classification is not used. The classification
</section>
<section id="dhcp4-relay-override">
- <title>Using specific relay for a subnet</title>
+ <title>Using specific relay agent for a subnet</title>
<para>
The relay has to have an interface connected to the link on which
the clients are being configured. Typically the relay has an IPv4