MFC r266177:

  - Do not override sin6_scope_id in LLA when it is already set to non-zero.
    This fixes destination list in output of netstat -r.
  - Plug a memory leak.
  - Add RTM_VERSION check.
MFC r265225:

  Move configuration of IPv6 NDP flags to a point before handling ifconfig_IF.
  This fixes a race that a non-IPv4 interface can get an EUI64 LLA even if it
  has IFDISABLED nd6 flag at boot time.
MFC r266248:

  Cancel DAD for an ifa when the ifp has ND6_IFF_IFDISABLED as early as
  possible and do not clear IN6_IFF_TENTATIVE.  If IFDISABLED was accidentally
  set after a DAD started, TENTATIVE could be cleared because no NA was
  received due to IFDISABLED, and as a result it could prevent DAD when
  manually clearing IFDISABLED after that.
MFC r266267, r267636:

  Fix an issue in range specification handling when a "-foo" is specified in
  ifconfig_IF_aliasN.
MFC r269054:

  Fix EtherIP.  TOS field must be initialized when the inner protocol is
  PF_LINK, and multicast/broadcast flag should always be dropped because
  the outer protocol uses unicast even when the inner address is not for
  unicast.  It had been broken since r236951 when gif_output() started to
  use IFQ_HANDOFF().
MFC r270234:

  Recover sin6_scope_id of gateway addresses in riprecv() by using the if_index
  where a RIP packet was received.  This fixes a bug which prevented gateway
  addresses in fe80::/64 from being added.
MFC r270780:
  Fix rc.d/gssd script to define the default values in a standard way.

MFC r270781:
  - Add a warning message when an IPv6 address is specified with no prefixlen.
  - Use a parameter argument in jls(8) instead of doing grep.
MFC r270782:

  Restructure rc.d scripts for kerberos5 daemons:

  - Rename $kerberos5_server_enable with $kdc_enable and rename
    rc.d/kerberos with rc.d/kdc.

  - Rename $kadmin5_server_enable with $kadmind_enable.

  - Rename ${kerberos5,kpasswdd}_server with ${kdc,kpasswdd}_program.

  - Fix rc.d/{kadmind,kerberos,kpasswdd,kfd} scripts not to change variables
    after load_rc_config().

  - Add rc.d/ipropd_master and rc.d/ipropd_slave scripts.  These are
    for iprop-master(8) and iprop-slave(8).  Keytab used for iprop service is
    defined in ipropd_{master,slave}_keytab (/etc/krb5.keytab by default).

  - Add dependency on rc.d/kdc to SERVERS.  rc.d/kdc must be invoked as early
    as possible before scripts divided by rc.d/SERVERS.

  Note that changes to rc.d/{kdc,kpasswdd,kadmind} are backward-compatible
  with the old configuration variables:
  ${kerberos5,kpasswdd,kadmin5}_server{,_enable,_flags}.
MFC r270783:

  Return false status only when adding a route is failed.  It could
  erroneously return false due to an afexists() check loop in routing_start().
MFC r270836:

  Use ipv6_prefer when at least one ifconfig_IF_ipv6 is configured.
MFC r271145:

  Fix a bug which prevented mount.fstab parameter from being converted
  when jail_JID_devfs_enable=NO.