Commit 102f42af authored by Marcin Siodelski's avatar Marcin Siodelski
Browse files

[3231] Updated bind10-guide to accomodate dynamic generation of server id.

parent e6d538fd
......@@ -4378,20 +4378,15 @@ Dhcp4/subnet4 [] list (default)
The DHCPv4 protocol uses a "server identifier" for clients to be able
to discriminate between several servers present on the same link: this
value is an IPv4 address of the server. When started for the first time,
the DHCPv4 server will choose one of its IPv4 addresses as its server-id,
and store the chosen value to a file. That file will be read by the server
and the contained value used whenever the server is subsequently started.
value is an IPv4 address of the server. The server chooses the IPv4 address
of the interface on which the message from the client (or relay) has been
received. A single server instance will use multiple server identifiers
if it is receiving queries on multiple interfaces.
It is unlikely that this parameter should ever need to be changed.
However, if such a need arises, stop the server, edit the file and restart
the server. (The file is named b10-dhcp4-serverid and by default is
stored in the "var" subdirectory of the directory in which BIND 10 is installed.
This can be changed when BIND 10 is built by using "--localstatedir"
on the "configure" command line.) The file is a text file that should
contain an IPv4 address. Spaces are ignored, and no extra characters are allowed
in this file.
Currently there is no mechanism to override the default server identifiers
by an administrator. In the future, the configuration mechanism will be used
to specify the custom server identifier.
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