ZyXEL P-661H-D1 User Guide - Page 219

Before You Begin, Dynamic Secure Gateway Address, Finding Out More

Page 219 highlights

Chapter 16 VPN If the remote secure gateway has a static WAN IP address, enter it in the Secure Gateway Address field. You may alternatively enter the remote secure gateway's domain name (if it has one) in the Secure Gateway Address field. 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 ZyXEL Device 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 16.6.11 on page 237 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 16.6 on page 229 for advanced technical information on IPSec VPN. 16.1.3 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. P-661HNU-Fx User's Guide 219

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Chapter 16 VPN
P-661HNU-Fx User’s Guide
219
If the remote secure gateway has a static WAN IP address, enter it in the
Secure
Gateway Address
field. You may alternatively enter the remote secure gateway’s
domain name (if it has one) in the
Secure Gateway Address
field.
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 ZyXEL Device 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 16.6.11 on page 237
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 16.6 on page 229
for advanced technical information on IPSec VPN.
16.1.3
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.