dhcp-4.4.0

[bdubbs@…]

New minor version.

[thomas]

RELNOTES (included in the package) speaks mainly about improvements in DDNS handling and improvements at dhclient.

There were three new ddns options added for use in servers config

1. ddns-dual-stack-mixed-mode - alters DNS conflict resolution behavior to mitigate issues with non-compliant clients in dual stack environments.

2. ddns-guard-id-must-match - relaxes the DHCID RR client id matching requirement of DNS conflict resolution.

3. ddns-other-guard-is-dynamic - alters dual-stack-mixed-mode behavior to allow unguarded DNS entries to be overwritten in certain cases

and three command line options for dhclient:

1. --prefix-len-hint - directs dhclient to use the given length as the prefix length hint when requesting prefixes

2. --decline-wait-time - instructs the client to wait the given number of seconds after declining an IPv4 address before issuing a discover

3. --address-prefix-len - specifies the prefix length passed by dhclient into the client script (via the environment variable ip6_prefixlen) with each IPv6 address. We added this parameter because we have changed the default value from 64 to 128 in order to be compliant with RFC3315bis draft (-09, page 64) and RFC5942, Section 4, point 1.

[thomas]

Fixed at r19733.