ZyXEL NBG420N Manuel d'utilisateur télécharger pdf (Page 177)

Chapter 15 IPSec VPN

NBG420N User’s Guide

177

Local Content When you select IP in the Local ID Type field, type the IP address of your

computer in the Local Content field. The NBG420N automatically uses the IP

address in the My IP Address field (refer to the My IP Address field

description) if you configure the Local Content field to 0.0.0.0 or leave it blank.

It is recommended that you type an IP address other than 0.0.0.0 in the Local

Content field or use the Domain Name or E-mail ID type in the following

situations.

• When there is a NAT router between the two IPSec routers.

• When you want the remote IPSec router to be able to distinguish between

VPN connection requests that come in from IPSec routers with dynamic

WAN IP addresses.

When you select Domain Name or E-mail in the Local ID Type field, type a

domain name or e-mail address by which to identify this NBG420N in the Local

Content field. Use up to 31 ASCII characters including spaces, although trailing

spaces are truncated. The domain name or e-mail address is for identification

purposes only and can be any string.

Secure Gateway

Address

Type the WAN IP address or the domain name (up to 31 characters) of the

IPSec router with which you're making the VPN connection. Set this field to

0.0.0.0 if the remote IPSec router has a dynamic WAN IP address (the IPSec

Keying Mode field must be set to IKE).

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.

Note: You can also enter a remote secure gateway’s domain

name in the Secure Gateway Address field if the remote

secure gateway has a dynamic WAN IP address and is

using DDNS. The NBG420N has to rebuild the VPN tunnel

each time the remote secure gateway’s WAN IP address

changes (there may be a delay until the DDNS servers are

updated with the remote gateway’s new WAN IP address).

Peer ID Type Select IP to identify the remote IPSec router by its IP address.

Select Domain Name to identify the remote IPSec router by a domain name.

Select E-mail to identify the remote IPSec router by an e-mail address.

Peer Content The configuration of the peer content depends on the peer ID type.

For IP, type the IP address of the computer with which you will make the VPN

connection. If you configure this field to 0.0.0.0 or leave it blank, the NBG420N

will use the address in the Secure Gateway Address field (refer to the Secure

Gateway Address field description).

For Domain Name or E-mail, type a domain name or e-mail address by which

to identify the remote IPSec router. Use up to 31 ASCII characters including

spaces, although trailing spaces are truncated. The domain name or e-mail

address is for identification purposes only and can be any string.

It is recommended that you type an IP address other than 0.0.0.0 or use the

Domain Name or E-mail ID type in the following situations:

• When there is a NAT router between the two IPSec routers.

• When you want the NBG420N to distinguish between VPN connection

requests that come in from remote IPSec routers with dynamic WAN IP

addresses.

Table 64 Security > VPN > Rule Setup: IKE (Advanced) (continued)

LABEL DESCRIPTION

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ZyXEL NBG420N Manuel d'utilisateur Page 177

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