Thomas Kunz
Systems and Computer Engineering
18
Network Integration
nAgent Advertisement
–HA and FA
periodically send advertisement messages into their physical subnets
–MN listens
to these messages and detects, if it is in the home or a foreign network (standard case for home network)
–MN reads a
COA from the FA advertisement messages
nRegistration (always limited lifetime!)
–MN signals
COA to the HA via the FA, HA acknowledges via FA to MN
–these
actions have to be secured by authentication
nAdvertisement
–HA
advertises the IP address of the MN (as for fixed systems), i.e. standard routing information
–routers
adjust their entries, these are stable for a longer time (HA responsible for a MN over a longer period of time)
–packets to
the MN are sent to the HA,
–independent
of changes in COA/FA