Configuring Advanced Ike Settings - ZyXEL Communications P-793H v3 User Manual

13.4 Configuring Advanced IKE Settings

Click Advanced Setup in the VPN Setup-Edit screen to open this screen.
Figure 79 Security > VPN > Setup > Edit > Advanced Setup
The following table describes the fields in this screen.
Table 49 Security > VPN > Setup > Edit > Advanced Setup
LABEL
VPN - IKE - Advanced Setup
Protocol
Enable Replay
Detection
Local Start Port
End
Remote Start Port
End
Phase 1
Negotiation Mode
Chapter 13 VPN
DESCRIPTION
Enter 1 for ICMP, 6 for TCP, 17 for UDP, and so on. 0 is the default and signifies
any protocol.
As a VPN setup is processing intensive, the system is vulnerable to Denial of
Service (DoS) attacks The IPSec receiver can detect and reject old or duplicate
packets to protect against replay attacks. Select YES from the drop-down menu
to enable replay detection, or select NO to disable it.
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.
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. If Local Start Port is left at
0, End will also remain at 0.
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.
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. If Remote Start Port is left
at 0, End will also remain at 0.
Select Main or Aggressive from the drop-down list box. Multiple SAs
connecting through a secure gateway must have the same negotiation mode.
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