dhcpcd.conf(5) - NetBSD Manual Pages

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DHCPCD.CONF(5)              System Manager's Manual             DHCPCD.CONF(5)


NAME

     dhcpcd.conf -- dhcpcd configuration file


DESCRIPTION

     Although dhcpcd can do everything from the command line, there are cases
     where it's just easier to do it once in a configuration file.  Most of
     the options found in dhcpcd(8) can be used here.  The first word on the
     line is the option and the rest of the line is the value.  Leading and
     trailing whitespace for the option and value are trimmed.  You can escape
     characters in the value using the \ character.

     Blank lines and lines starting with # are ignored.

     Here's a list of available options:

     background
             Background immediately.  This is useful for startup scripts which
             don't disable link messages for carrier status.

     blacklist address
             Ignores all DHCP messages which have this address as the server
             ID.  This may be expanded in future releases to ignore all pack-
             ets matching either the IP or hardware address.

     clientid string
             Send the clientid.  If the string is of the format 01:02:03 then
             it is encoded as hex.  For interfaces whose hardware address is
             longer than 8 bytes, or if the clientid is an empty string then
             dhcpcd sends a default clientid of the hardware family and the
             hardware address.

     duid    Generate an RFC 4361.  compliant clientid.  This requires persis-
             tent storage and not all DHCP servers work with it so it's not
             enabled by default.  The duid generated will be held in
             /etc/dhcpcd.duid and should not be copied to other hosts.

     hostname name
             Sends specified hostname to the DHCP server so it can be regis-
             tered in DNS. If hostname if a FQDN (ie, contains a .) then it
             will be encoded as such.

     fqdn [none | ptr | both]
             none disables FQDN encoding, ptr just asks the DHCP server to
             update the PTR record of the host in DNS whereas both also
             updates the A record.  The current hostname or the hostname spec-
             ified using the hostname option must be a FQDN.  dhcpcd itself
             never does any DNS updates.  dhcpcd encodes the FQDN hostname as
             specified in RFC1035.

     interface interface
             Subsequent options are only parsed for this interface.

     leasetime seconds
             Request a leasetime of seconds.

     noarp   Don't send any ARP requests.  This also disables IPv4LL.

     nogateway
             Don't install any default routes.

     nohook script
             Don't run this hook script.  Matches full name, or prefixed with
             2 numbers optionally ending with .sh.

     noipv4ll
             Don't attempt to obtain an IPv4LL address if we failed to get one
             via DHCP.  See RFC 3927.

     nolink  Don't receive link messages about carrier status.  You should
             only set this for buggy interface drivers.

     option option
             Requests the option from the server.  It can be a variable to be
             used in dhcpcd-run-hooks(8) or the numerical value.  You can
             specify more options seperated by commas, spaces or more option
             lines.  quiet Supress any dhcpcd output to the console, except
             for errors.

     require option
             Requires the option to be present in all DHCP messages, otherwise
             the message is ignored.  It can be a variable to be used in
             dhcpcd-run-hooks(8) or the numerical value.  You can specify more
             options seperated by commas, spaces or more require lines.

     script script
             Use script instead of the default /libexec/dhcpcd-run-hooks.

     timeout seconds
             The default timeout for waiting for a DHCP response is 30 seconds
             which may be too long or too short and can be changed here.

     userclass string
             Tag the DHCP messages with the userclass.  You can specify more
             than one.

     vendor code,value
             Add an enscapulated vendor option.  code should be between 1 and
             254 inclusive.  Examples.

             Set the vendor option 01 with an IP address.
                   vendor 01,192.168.0.2
             Set the vendor option 02 with a hex code.
                   vendor 02,01:02:03:04:05
             Set the vendor option 03 with an IP address as a string.
                   vendor 03,\"192.168.0.2\"

     vendorclassid string
             Change the default vendorclassid sent from dhcpcd-version.  If
             not set then none is sent.


SEE ALSO

     dhcpcd-run-hooks(8), dhcpcd(8)


AUTHORS

     Roy Marples <roy@marples.name>


BUGS

     Please report them to http://roy.marples.name/projects/dhcpcd

NetBSD 5.0.1                   November 18, 2008                  NetBSD 5.0.1