ZyXEL P-792H v2 User Guide - Page 157
VPN Setup Screen
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Chapter 12 VPN 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 P-792H v2 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). Dynamic Secure Gateway Address If the remote secure gateway has a dynamic WAN IP address and does not use DDNS, enter 0.0.0.0 as the secure gateway's address. In this case only the remote secure gateway can initiate SAs. This may be useful for telecommuters initiating a VPN tunnel to the company network (see Section 12.9.12 on page 182 for configuration examples). The Secure Gateway IP Address may be configured as 0.0.0.0 only when using IKE key management and not Manual key management. Finding Out More See Section 12.9 on page 173 for advanced technical information on IPSec VPN. 12.1.3 Before You Begin If a VPN tunnel uses Telnet, FTP, WWW, then you should configure remote management (Remote MGMT) to allow access for that service. 12.2 VPN Setup Screen The following figure helps explain the main fields in the web configurator. Figure 71 IPSec Summary Fields Local Network Remote Network Remote IPSec Router Local IP Address VPN Tunnel Remote IP Address My IP Address Secure Gateway IP Address Local and remote IP addresses must be static. P-792H v2 User's Guide 157