ZyXEL Communications P-2602HWLNI - Manual (Page 290)

Chapter 18 VPN Screens
P-2602HWLNI User’s Guide
290
Figure 163 Advanced VPN Policies
The following table describes the fields in this screen.
Table 110 Advanced VPN Policies
LABEL DESCRIPTION
VPN - IKE
Protocol Enter 1 for ICMP, 6 for TCP, 17 for UDP, etc. 0 is the default and signifies any
protocol.
Enable Replay
Detection
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.
Local Start Port 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. If Local Start Port is left at 0,
End will also remain at 0.
Remote Start Port 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. If Remote Start Port is left at 0,
End will also remain at 0.
Phase 1
Negotiation Mode Select Main or Aggressive from the drop-down list box. Multiple SAs connecting
through a secure gateway must have the same negotiation mode.