IETF 78 RADIUS extensions for DS-Lite draft-maglione-softwire-dslite-radius-ext-00 R. Maglione – Telecom Italia A. Durand – Juniper Networks

IETF 78 Background  DS-Lite is a solution to offer both IPv4 and IPv6 connectivity to customers which are addressed only with an IPv6 prefix  In order to establish DS-Lite Tunnel, B4 element needs to know the remote endpoint Address or Name  draft-ietf-softwire-ds-lite-tunnel-option already defines DHCPv6 options for DS-Lite Tunnel Address and Name  In Broadband networks, the customer profile information may be stored in AAA servers  This document specifies two new RADIUS attributes to carry DS-Lite Tunnel Address and DS-Lite Tunnel Name

IETF 78 DHCPv6 based DSLite Configuration RG-B4 DHCPv6 Client NAS DHCPv6 Server IPv4 Tunnel ( DS_Lite_ADD / Name ) IPv4 IPv6 AFTR NATv4 DHCPv6 (.. DS_LITE_ADDR /Name ) DHCPv6 ( … DS_Lite Add /Name) B4 : DHCPv6 Client NAS: DHCPv6 Server IPv6 Network

IETF 78 RG/B4 DHCPv6 Client NAS: DHCPv6 Server NAS: RADIUS Client IPv4 Tunnel ( DS_Lite_ADD ) IPv4 IPv6 AFTR NATv4 AAA Radius Server User profile: Username pwd Delegated-prefix... Tunnel Add/Name Access-Request Access-Accept (..Tunnel Add/ Name) NAS translates Tunnel Add/Name Radius Attribute into DHCPv6 options RADIUS + DHCPv6 based DSLite Configuration DHCPv6 (.. DS_LITE_ADDR /Name ) IPv6 Network DHCPv6 ( DS_Lite Add /Name) B4 : DHCPv6 Client NAS: DHCPv6 Server + RADIUS Client

IETF 78 DS-Lite-Tunnel-Addr Radius Attribute | Type | Length | DS-Lite-Tunnel-Addr | | DS-Lite-Tunnel-Addr (IPv6 Address)(cont) |  The DS-Lite-Tunnel-Addr RADIUS attribute contains a 128 bit IPv6 address that identifies the location of the remote tunnel endpoint, expected to be located at an AFTR  The NAS shall use the address returned in the RADIUS DS- Lite-Tunnel-Addr attribute to populate the DHCPv6 OPTION_DS_LITE_ADDR option

IETF 78 DS-Lite-Tunnel-Name Radius Attribute | Type | Length | DS-Lite-Tunnel-Name (FQDN) | | DS-Lite-Tunnel-Name (FQDN)(cont) |  The DS-Lite-Tunnel-Name RADIUS attribute contains a Fully Qualified Domain Name that refers to the AFTR the client is requested to establish a connection with  The NAS shall use the address returned in the RADIUS DS- Lite-Tunnel-Name attribute to populate the DHCPv6 OPTION_DS_LITE_NAME option

IETF 78 Questions?

IETF 78 Next Step  Adopt as WG item?