ZyXEL P-202H User Guide - Page 307
Key Management, Menu 27.1.1 - IPSec Setup, Edit Key Management Setup, Menu 27.1.1 - IPSec, Setup,
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P-202H Plus v2 User's Guide Table 101 Menu 27.1.1 IPSec Setup FIELD DESCRIPTION End/Subnet Mask When the Addr Type field is configured to Single, this field is N/A. When the Addr Type field is configured to Range, enter the end (static) IP address, in a range of computers on the network behind the remote IPSec router. When the Addr Type field is configured to SUBNET, enter a subnet mask on the network behind the remote IPSec router. This field displays N/A when you configure the Secure Gateway Address field to 0.0.0.0. Port Start 0 is the default and signifies any port. Type a port number from 0 to 65535. Someone behind the remote IPSec router cannot create a VPN tunnel when attempting to connect using a port number that does not match this port number or range of port numbers. 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 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. 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 [ENTER]. Manual Management is useful for troubleshooting if you have problems using IKE key management. Edit Key Management Setup Press [SPACE BAR] to change the default No to Yes and then press [ENTER] to go to a key management menu for configuring your key 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. 33.4 IKE Setup To edit this menu, the Key Management field in 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. Chapter 33 VPN/IPSec Setup 306