Figure 116 Private Dns Server Example; Private Network - ZyXEL Communications ZyXEL NBG420N User Manual

Chapter 15 IPSec VPN
The following figure depicts an example where one VPN tunnel is created from an NBG420N
at branch office (B) to headquarters (HQ). In order to access computers that use private
domain names on the HQ network, the NBG420N at B uses the Intranet DNS server in
headquarters.

Figure 116 Private DNS Server Example

ISP
DNS Servers
212.54.64.170 212.54.64.171
LAN
HQ
DNS: 212.51.61.170
10.1.1.1/200
212.54.64.171
B Intranet DNS
10.1.1.10
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

private network.

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