ZyXEL P-202H User Guide - Page 130
Table 38
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P-202H Plus v2 User's Guide Figure 54 Advanced Rule Setup The following table describes the labels in this screen. Table 38 Advanced Rule Setup LABEL Protocol Enable Replay Detection Local Start Port End Remote Start Port DESCRIPTION Enter 1 for ICMP, 6 for TCP, 17 for UDP, etc. 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 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 (or equal to it for configuring an individual 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 129 Chapter 11 VPN Screens
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