SHISA: The IPv6 Mobility Framework for BSD Operating Systems IPv6 - - PowerPoint PPT Presentation
SHISA: The IPv6 Mobility Framework for BSD Operating Systems IPv6 Today Workshop 2nd August 2006 @ Bucharest, Romania Keiichi Shima / Internet Initiative Japan Inc. Ryuji Wakikawa, Koshiro Mitsuya and Keisuke Uehara / Keio Univeristy
IPv6 Today Workshop 2nd August 2006 @ Bucharest, Romania
Keiichi Shima / Internet Initiative Japan Inc. Ryuji Wakikawa, Koshiro Mitsuya and Keisuke Uehara / Keio Univeristy Tsuyoshi Momose / NEC Corporation
Mobile Node moves to a foreign network
Mobile Node (MN) Home Agent (HA) Home Network Foreign Network Move Care-of Address (CoA) Home Address (HoA) Internet Correspondent Node (CN)
Mobile Node (MN) Home Agent (HA) Home Network Foreign Network Care-of Address (CoA) Home Address (HoA) Internet Correspondent Node (CN) Bi-directional Tunnel Binding Update (HoA - CoA)
Binds CoA and HoA and creates bi-dir tunnel
Mobile Node (MN) Home Agent (HA) Home Network Foreign Network Care-of Address (CoA) Home Address (HoA) Internet Correspondent Node (CN) Communication MN - CN
Traffic goes though the tunnel
Mobile Node (MN) Home Agent (HA) Home Network Foreign Network Care-of Address (CoA) Home Address (HoA) Internet Correspondent Node (CN) HoA ownership confirmation CoA ownership confirmation Binding Update (HoA - CoA)
Confirms ownership
sends Binding Update
Home Agent (HA) Home Network Foreign Network Move Internet Correspondent Node (CN) Communication MNN - CN Bi-directional Tunnel Home Address Mobile Network Mobile Network Care-of Address Binding Update (HoA - CoA,Mobile Network Prefix) Mobile Network Nodes (MNNs)
Registers both HoA and Mobile Network Prefix
mnd Mobile Host Functions had Home Agent Functions (for both Mobile IPv6 and NEMO BS) cnd Route Optimization Function babymdd A simple movement detector mrd Mobile Router Functions nemonetd Tunnel setup for NEMO BS
Mobile Host Mobile Router Home Agent
Correspondent Node
mnd
√
mrd
√
babymdd
√ √
had
√
nemonetd
√ √
cnd
√ √ √
Required for CN functions Required for NEMO functions
babymdd mnd had nemonetd mrd cnd
Binding Management Module Mobility Socket Routing Socket Address Management Module Neighbor Discovery Module Forwarding Module Binding Update Database Binding Cache Database Routing Management Module Routing Table
user space kernel space
babymdd mnd had nemonetd mrd cnd
Binding Management Module Mobility Socket Routing Socket Address Management Module Neighbor Discovery Module Forwarding Module Binding Update Database Binding Cache Database Routing Management Module Routing Table
user space kernel space
Added modules Modified modules
Mobile Host mip0 wi0 ed0 Physical Addresses (CoAs) are assigned here Home Address is assigned here Mobile Router mip0 wi0 ed0 Physical Addresses (CoAs) are assigned here Home Address is assigned here nemo0 Unnumbered tunnel to the Home Agent via the current CoA
current care-of address
end-point address
NODETYPE_INFO Configure the type of node (MN, MR, HA, CN) BC_ADD Add a Binding Cache entry BC_UPDATE (same as above) BC_REMOVE Remove a Binding Cache entry BC_FLUSH Clear all Binding Cache entry BUL_ADD Add a Binding Update List entry BUL_UPDATE (same as above) BUL_REMOVE Remove a Binding Update List entry BUL_FLUSH Clear all Binding Update List entry MD_INFO Movement information HOME_HINT A hint message that a node returns home RR_HINT A hint message that a node receives a bi-directional tunneled packet BE_HINT A control message from kernel to send a Binding Error message DAD A control message to kernel to perform DAD for a specified address
kernel babymdd mnd Detect movement MD_INFO message with a new CoA BUL_ADD message BUL entry creation BU / BA exchange with Home Agent
kernel babymdd mrd Detect Movement MD_INFO message with a new CoA BUL_ADD message BUL entry creation BU / BA exchange with Home Agent nemonetd NEMO tunnel setup BUL_ADD message
kernel mnd Receive tunneled packet RR_HINT message with the CN's address Perform the RR procedure BU (/ BA) exchange with the CN BUL_ADD message BUL entry creation
babymdd mnd had nemonetd mrd cnd
Binding Management Module Mobility Socket Routing Socket Address Management Module Neighbor Discovery Module Forwarding Module Binding Update Database Binding Cache Database Routing Management Module Routing Table
user space kernel space
babymdd mnd had nemonetd mrd cnd
Binding Management Module Mobility Socket Routing Socket Address Management Module Neighbor Discovery Module Forwarding Module Binding Update Database Binding Cache Database Routing Management Module Routing Table
user space kernel space
detect movement
babymdd mnd had nemonetd mrd cnd
Binding Management Module Mobility Socket Routing Socket Address Management Module Neighbor Discovery Module Forwarding Module Binding Update Database Binding Cache Database Routing Management Module Routing Table
user space kernel space
BU/BA exchange
babymdd mnd had nemonetd mrd cnd
Binding Management Module Mobility Socket Routing Socket Address Management Module Neighbor Discovery Module Forwarding Module Binding Update Database Binding Cache Database Routing Management Module Routing Table
user space kernel space
babymdd mnd had nemonetd mrd cnd
Binding Management Module Mobility Socket Routing Socket Address Management Module Neighbor Discovery Module Forwarding Module Binding Update Database Binding Cache Database Routing Management Module Routing Table
user space kernel space
BUL creation
babymdd mnd had nemonetd mrd cnd
Binding Management Module Mobility Socket Routing Socket Address Management Module Neighbor Discovery Module Forwarding Module Binding Update Database Binding Cache Database Routing Management Module Routing Table
user space kernel space
tunnel creation
detector implementation as babymdd
Unreachability Detection) against the router that sent the prefix information of the current care-of address (CoA)
becomes unreachable
multiplecoa-04
tunnel and use multiple NEMO tunnel I/Fs
program
characteristics