Ike Setup; Ike Phases - ZyXEL Communications ZyWALL 10/10 User Manual

ZyWALL 10/10 II/50 Internet Security Gateway
FIELD
Port Start 0 is the default and signifies any port. Type a port number from 0 to 65535.
Some of the most common IP ports are:
21, FTP; 53, DNS; 23, Telnet; 80, HTTP; 25, SMTP; 110, POP3.
End Enter a port number in this field to define a port range. This port number
must be greater than that specified in the previous field. This field is N/A
when 0 is configured in the Port Start field.
Enable Replay As a VPN setup is processing intensive, the system is vulnerable to Denial
Detection of Service (DoS) attacks The IPSec receiver can detect and reject old or
duplicate packets to protect against replay attacks. Enable replay detection
by setting this field to Yes.
Press [SPACE BAR] to select Yes or No. Choose Yes and press [ENTER]
to enable replay detection.
Key Press [SPACE BAR] to choose either IKE or Manual and then press
Management [ENTER]. Manual is useful for troubleshooting if you have problems using
IKE key management.
Edit Key Press [SPACE BAR] to change the default No to Yes and then press
Management [ENTER] to go to a key management menu for configuring your key
Setup management setup (described later). If you set the Key Management field
to IKE, this will take you to Menu 27.1.1.1 – IKE Setup. If you set the Key
Management field to Manual, this will take you to Menu 27.1.1.2 –
Manual Setup.
When you have completed this menu, press [ENTER] at the prompt "Press ENTER to Confirm..." to save
your configuration, or press [ESC] at any time to cancel.

26.5 IKE Setup

To edit this menu, the Key Management field Menu 27.1.1 – IPSec Setup must be set to IKE. Move the
cursor to the Edit Key Management Setup field in Menu 27.1.1 – IPSec Setup; press [SPACE BAR] to
select Yes and then press [ENTER] to display Menu 27.1.1.1 – IKE Setup.

26.5.1 IKE Phases

There are two phases to every IKE (Internet Key Exchange) negotiation – phase 1 (Authentication) and phase
2 (Key Exchange). A phase 1 exchange establishes an IKE SA and the second one uses that SA to negotiate
SAs for IPSec.
26-12
Table 26-4 Menu 27.1.1 — IPSec Setup
DESCRIPTION EXAMPLE
0
No
IKE
No
VPN/IPSec Setup