Message Flow MN +-----------------+ BCF +------------+ AAA +--+ HA1 HA2 HAn | | | | ------------------\ | | (1)| BoI with \ | | | auth & nai & id / | | | ------------------/ | | | | (2) | | | /------------\ | | | / authenticate \ | | | \ with AAA / | | | \------------/ | | | | + + | | (3) | | + + | | | /------------------ | (4)| / BoA with | | \ HoA & auth option | | \------------------ | | | | /------------------ | (5)| / HAH message | | \ defined in [3] | | \------------------ | | | (6) /----------------------------------------------\ / MIPv6 Binding Update \ \ & Binding ckowledgement / \----------------------------------------------/ |