<dt><b>--bridge-interface=&lt;interface&gt;,&lt;alias&gt;[,&lt;alias&gt;]</b></dt>
<dd>Treat DHCP (v4 and v6) requests and IPv6 Router Solicit packets
arriving at any of the &lt;alias&gt; interfaces as if they had arrived at
&lt;interface&gt;.  This option allows dnsmasq to provide DHCP and RA
service over unaddressed and unbridged Ethernet interfaces, e.g. on an
OpenStack compute host where each such interface is a TAP interface to
a VM, or as in "old style bridging" on BSD platforms.  A trailing '*'
wildcard can be used in each &lt;alias&gt;.
<p>
It is permissible to add more than one alias using more than one <b>--bridge-interface</b> option since
<b>--bridge-interface=int1,alias1,alias2</b> is exactly equivalent to
<b>--bridge-interface=int1,alias1 --bridge-interface=int1,alias2</b></dd>