xx ◾ Contents
9 Site-to-Site VPN Tunnel Implementation against
Eavesdropping Attacks ........................................325
9.1 Introduction ...........................................................325
9.1.1 IKE Protocol Phases .................................327
9.1.2 IPsec Modes ..............................................328
9.1.3 IPsec Protocols ..........................................328
9.1.4 VPN Types ................................................328
9.2 Lab 9.1: Site-to-Site VPN — First Implementation ....329
9.2.1 Outcome ...................................................329
9.2.2 Description ................................................330
9.2.3 Experiment ................................................330 ...