ZyXEL 202H 91-003-194001B 用户手册

P-202H Plus v2 User’s Guide

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Chapter 33 VPN/IPSec Setup

Protocol

Enter 1 for ICMP, 6 for TCP, 17 for UDP, etc. 0 is the default and signifies any protocol.

Local

Local IP addresses must be static and correspond to the remote IPSec router’s 

configured remote IP addresses.
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.

Addr Type

This field displays SINGLE for a single IP address. 

Local IP Addr

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 ZyXEL Device.
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 ZyXEL Device. 
When the Addr Type is configured to SUBNET, this is a (static) IP address on the LAN 

behind your ZyXEL Device.

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 LAN behind your ZyXEL Device. 
When the Addr Type field is configured to SUBNET, this is a subnet mask on the LAN 

behind your ZyXEL Device.

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

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.

Remote

Remote IP addresses must be static and correspond to the remote IPSec router’s 

configured local IP addresses. The remote fields are N/A when the Secure Gateway 

Address field is configured to 0.0.0.0. 
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.

Addr Type

Press [SPACE BAR] to choose SINGLE, RANGE, or SUBNET and press [ENTER]. 

Select SINGLE with a single IP address. Use RANGE for a specific range of IP 

addresses. Use 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 

network behind the remote IPSec router.
When the Addr Type field is configured to Range, enter the beginning (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 static IP address 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.

Table 101   Menu 27.1.1 IPSec Setup