ZyWALL 2 Series User’s Guide
14-10 VPN Screens
Table 14-6 Mismatching ID Type and Content Configuration Example
ZYWALL A ZYWALL B
Peer ID type: E-mail
Peer ID type: IP
Peer ID content: aa@yahoo.com Peer ID content: N/A
14.9 Pre-Shared Key
A pre-shared key identifies a communicating party during a phase 1 IKE negotiation (see section 14.10 for
more on IKE phases). It is called “pre-shared” because you have to share it with another party before you can
communicate with them over a secure connection.
14.10 VPN Implementation
14.10.1 Client to Site VPN
A client to site VPN tunnel connects a single computer behind an IPSec router to a group of computers
behind the remote IPSec router.
Figure 14-5 Client-to-Site VPN Example
14.10.2 Site to site VPN
A site to site VPN tunnel connects group of computers behind an IPSec router to a group of computers
behind the remote IPSec router.