dhcp6s (8) - Linux Manuals

dhcp6s: DHCPv6 server


dhcp6s - DHCPv6 server


[-c configfile ] [-Ddf ] [-k ctlkeyfile ] [-p ctlport ] [-P pid-file ] interface


replies to DHCPv6 client as DHCPv6 server. can give the following information to clients.

Command line options are as below:

-c configfile
Use configfile as the configuration file.
Print debugging messages.
Even more debugging information is printed.
Foreground mode (useful when debugging). Although usually prints warning, debugging, or error messages to syslog(8), it prints the messages to standard error if this option is specified.
-k ctlkeyfile
Use ctlkeyfile to store the shared secret to authenticate the communication with dhcp6ctl The default file name used when unspecified is /etc/wide-dhcpv6/dhcp6sctlkey The default name is intentionally same as that for dhcp6ctl so that the server and the control command can share the file when dhcp6ctl controls the server on the same node, which should be the typical case.
-p ctlport
Use ctlport as the port number listening on to communicate with dhcp6ctl
-P pid-file
Use pid-file to dump the process ID of .


is the default configuration file.
is the default file to store the server's DUID.
is the default key file to communicate with the control command. See dhcp6ctl(8) for the file format.
is the default file that contains pid of the currently running .


The command first appeared in WIDE/KAME IPv6 protocol stack kit.

The -n dnsserv command-line option was obsoleted by introducing a configuration file.


is incomplete and violates DHCPv6 protocol spec, in several aspects. To name a few:

  1. it does not assign temporary IPv6 addresses (nor will)


dhcp6s.conf5, dhcp6ctl(8), dhcp6c(8)
Ralph Droms, Editor 2003 Dynamic Host Configuration Protocol for IPv6 (DHCPv6) RFC 3315