Peer mobile router authentication method, and multiple peer care-of addresses registration method, and mobile router failover method for multi-homed mobile networks

Provided are a peer MR authentication method, a multiple peer CoAs registration method, a failover method for multi-homed mobile networks, and a computer readable recording medium thereof. The registering method includes the steps of: a) determining whether a second MR is around a first MR; b) at the first MR, transmitting a peer request message to the second MR; c) at the first MR, requesting a HA of the first MR to authenticate the second MR; d) at the HA, transmitting a peer registering request message to the second MR with a prefix of the first MR that transmit the authentication request message to perform RR authentication; and e) at the HA, notifying the authentication result of the second MR to the first MR when receiving a RR authentication result message including the prefix of the first MR to be registered as a peer from the second MR.