Alias IP
Simon Hobson
dhcp1 at thehobsons.co.uk
Mon Nov 20 23:24:05 UTC 2006
How about (from man dhcpd.conf) :
The server-identifier statement
server-identifier hostname;
The server-identifier statement can be used to define
the value that is sent in the DHCP Server Identifier
option for a given scope. The value specified must
be an IP address for the DHCP server, and must be
reachable by all clients served by a particular
scope.
The use of the server-identifier statement is not
recommended - the only reason to use it is to force a
value other than the default value to be sent on
occasions where the default value would be incorrect.
The default value is the first IP address associated
with the physical network interface on which the
request arrived.
The usual case where the server-identifier statement
needs to be sent is when a physical interface has
more than one IP address, and the one being sent by
default isn't appropriate for some or all clients
served by that interface. Another common case is
when an alias is defined for the purpose of having a
consistent IP address for the DHCP server, and it is
desired that the clients use this IP address when
contacting the server.
Supplying a value for the dhcp-server-identifier
option is equivalent to using the server-identifier
statement.
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