ZyXEL Communications Internet Security Gateway ZyWALL 2 Series User Manual page 515

FIELD
Local Local IP addresses must be static and correspond to the remote IPSec
router's configured remote IP addresses.
Two active SAs can have the same configured 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.
In order to have more than one active rule with the Secure Gateway
Address field set to 0.0.0.0, the ranges of the local IP addresses cannot
overlap between rules.
If you configure an active rule with 0.0.0.0 in the Secure Gateway
Address field and the LAN's full IP address range as the local IP address,
then you cannot configure any other active rules with the Secure Gateway
Address field set to 0.0.0.0.
Addr Type Press [SPACE BAR] to choose SINGLE, RANGE, or SUBNET and press
[ENTER]. Select SINGLE with a single IP address. Select RANGE for a
specific range of IP addresses. Select SUBNET to specify IP addresses on
a network by their subnet mask.
IP Addr Start When the Addr Type field is configured to Single, enter a static IP
address on the LAN behind your ZyWALL.
When the Addr Type field is configured to Range, enter the beginning
(static) IP address, in a range of computers on your LAN behind your
ZyWALL.
When the Addr Type is configured to SUBNET, this is a (static) IP
address on the LAN behind your ZyWALL.
End/Subnet When the Addr Type field is configured to Single, this field is N/A.
Mask
When the Addr Type field is configured to Range, enter the end (static) IP
address, in a range of computers on the LAN behind your ZyWALL.
When the Addr Type field is configured to SUBNET, this is a subnet mask
on the LAN behind your ZyWALL.
Port Start 0 is the default and signifies any port. Type a port number from 0 to 65535.
You cannot create a VPN tunnel if you try 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
VPN/IPSec Setup
Table 37-2 Menu 27.1.1: IPSec Setup
DESCRIPTION
ZyWALL 2 Series User's Guide
EXAMPLE
192.168.1.35
192.168.1.38
SINGLE
0
37-9