What is ISAKMP ? A protocol for managing the establishment of Security Associations and exchanging keying material The protocol describes two phases with a series of exchanges that must be completed in order for IPsec SAs to be established Phase 1 Identification and authentication of two ISAKMP "peers" Establishing a secure channel Negotiating ISAKMP SA properties Multiple modes of operation Phase 2 Negotiating IPsec SA properties Installing the IPsec flows into the kernel