Zyxel-communications P-334U Manual do Utilizador descarregar pdf (Página 147)

P-334U/P-335U User’s Guide

Chapter 13 IPSec VPN 147

13.2 Remote DNS Server

In cases where you want to use domain names to access Intranet servers on a remote network

that has a DNS server, you must identify that DNS server. You cannot use DNS servers on the

LAN or from the ISP since these DNS servers cannot resolve domain names to private IP

addresses on the remote network

The following figure depicts an example where three VPN tunnels are created from ZyXEL

Device A; one to branch office 2, one to branch office 3 and another to headquarters. In order

to access computers that use private domain names on the headquarters (HQ) network, the

ZyXEL Device at branch office 1 uses the Intranet DNS server in headquarters. The DNS

server feature for VPN does not work with Windows 2000 or Windows XP.

Figure 89 VPN Host using Intranet DNS Server Example

If you do not specify an Intranet DNS server on the remote network, then the VPN host must

use IP addresses to access the computers on the remote network.

13.3 VPN Summary

Click Security > VPN to display the Summary screen. This is a read-only menu of your VPN

rules (tunnels). Edit a VPN by clicking the Edit icon.

Figure 90 Security > VPN > Summary

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Zyxel-communications P-334U Manual do Utilizador Página 147