Zyxel-communications P-661H Series Manual de usuario descargar pdf (Pagina 219)

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101

P-661H/HW Series User’s Guide

Chapter 13 VPN Screens 219

Figure 126 Advanced VPN Policies

The following table describes the fields in this screen.

Table 85 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

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