ZyXEL Communications P-334WT User Manual page 184

P-334WT User's Guide
Table 72 Rule Setup with Manual Key
LABEL
Local Address
Local Port Start
Local Port End
Remote Address Start
Remote Address End/
Mask
Remote Port Start
Remote Port End
DNS Server (for IPSec
VPN)
My IP Address
Secure Gateway IP
Address
SPI
Encapsulation Mode
Enable Replay
Detection
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DESCRIPTION
The Local IP address must be static and correspond to the remote IPSec
router's configured remote IP addresses.
Two active SAs can have the same local or remote IP address, but not both.
You can configure multiple SAs between the same local and remote IP
addresses, as long as only one is active at any time.
"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.
Type 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 Port Start is left at
0, Local Port End will also remain at 0.
Remote IP addresses must be static and correspond to the remote IPSec
router's configured local IP addresses. The remote address fields do not
apply when the Secure Gateway IP Address field is configured to 0.0.0.0. In
this case only the remote IPSec router can initiate the VPN.
Two active SAs cannot have the local and remote IP address(es) both the
same. Two active SAs can have the same local or remote IP address, but not
both. You can configure multiple SAs between the same local and remote IP
addresses, as long as only one is active at any time.
Enter a (static) IP address on the network behind the remote IPSec router.
When the remote IP address is a single address, type it a second time here.
When the remote IP address is a range, enter the end (static) IP address, in a
range of computers on the network behind the remote IPSec router.
When the remote IP address is a subnet address, enter a subnet mask on the
network behind the remote IPSec router.
"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. If Remote Port Start is left
at 0, Remote Port End will also remain at 0.
If there is a private DNS server that services the VPN, type its IP address
here. The Prestige assigns this additional DNS server to the Prestige's DHCP
clients that have IP addresses in this IPSec rule's range of local addresses. A
DNS server allows clients on the VPN to find other computers and servers on
the VPN by their (private) domain names.
Enter the WAN IP address of your Prestige. The Prestige uses its current
WAN IP address (static or dynamic) in setting up the VPN tunnel if you leave
this field as 0.0.0.0. The VPN tunnel has to be rebuilt if this IP address
changes.
Type the WAN IP address or the URL (up to 31 characters) of the IPSec
router with which you're making the VPN connection.
Type a number (base 10) from 1 to 999999 for the Security Parameter Index.
Select Tunnel mode or Transport mode from the drop-down list box.
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.
Chapter 12 VPN Screens