Updates to DHCPv4 and DHCPv6 Options for
Access Network Discovery and Selection Function (ANDSF) DiscoveryFrance TelecomRennes35000Francemohamed.boucadair@orange.comThis document updates RFC 6153 by correcting IANA allocations made
for DHCPv4 and DHCPv6 options for Access Network Discovery and Selection
Function (ANDSF) Discovery. This document assigns a code for DHCPv6
option for ANDSF and withdraws an already assigned DHCPv4 option
code.The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119. defines a DHCPv4 option (called
OPTION-IPv4_Address-ANDSF) and a DHCPv6
option (called OPTION-IPv6_Address-ANDSF)
to enable a mobile node to discover Access Network Discovery and
Selection Function (ANDSF) entities in an IP network. Nevertheless, IANA
assigned mistakenly two DHCPv4 option codes instead of one DHCPv4 option
code and a DHCPv6 option code.This document updates by assigning a
code for DHCPv6 option for ANDSF and withdrawing an already assigned
DHCPv4 option code.In order to be backward compatible with existing implementations,
IANA MUST assign 143 as a DHCPv6 option code for
OPTION-IPv6_Address-ANDSF.This document changes section 6 of as
follows:OLD:NEW:Security considerations are discussed in .IANA is requested to assign the following new DHCPv6 Option Code in
the registry maintained in
http://www.iana.org/assignments/dhcpv6-parameters:Option NameValueOPTION-IPv6_Address-ANDSF143IANA is requested to return the following value to the available
DHCPv4 Option Codes space maintained in
http://www.iana.org/assignments/bootp-dhcp-parameters/:Option NameValueOPTION-IPv6_Address-ANDSF143