ZyXEL 4-port Prestige 792H Router 91-004-342001 Manual De Usuario

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Prestige 792H G.SHDSL Router 
36-10  
VPN/IPSec 
Setup 
Table 36-2 Menu 27.1.1 IPSec Setup 
FIELD DESCRIPTION 
EXAMPLE 
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. 
255.255.0.0 
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. 
No 
Key 
Management 
Press [SPACE BAR] to choose either IKE or Manual and then press 
[ENTER]. Manual is useful for troubleshooting if you have problems using 
IKE key management. 
IKE 
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
No 
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.