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IPSec NAT Traversal
10/100 4-Port VPN Router
Appendix D
Click the 4. One-to-One NAT tab.
For the One-to-One NAT setting, select 5. Enable.
In the 6. Private Range Begin field, enter 111.11.
In the 7. Public Range Begin field, enter 11.101.
In the 8. Range Length field, enter an appropriate value.
The range length cannot exceed the number of valid
IP addresses. To map a single address, enter 1.
Click 9. Add to List.
Click 10. Save Settings.
Refer to “Chapter 4: Advanced Configuration” for more
details about one-to-one NAT rules.
Configuration of Router B
Set the Remote Security Gateway to IP address:
192.168.99.1, which is the one-to-one NAT IP address
used by NAT 2 - RV042.
Follow these instructions for Router B.
Launch the web browser for a networked computer, 1.
designated PC 2.
Access the web-based utility of Router B. (Refer to the 2.
User Guide of the RVL200 for details.)
Click the3. IPSec VPN tab.
Click the 4. Gateway to Gateway tab.
Enter a name in the 5. Tunnel Name field.
For the VPN Tunnel setting, select 6. Enable.
For the Local Security Gateway Type, select 7. IP Only.
The WAN IP address of Router B will be automatically
detected.
For the Local Security Group Type, select Subnet. Enter
Router B’s local network settings in the IP Address and
Subnet Mask fields.
For the Remote Security Gateway Type, select 8. IP Only.
Enter 192.168.99.1 in the IP Address field.
Router B’s IPSec VPN Settings
For the Remote Security Group Type, select 9. Subnet.
Enter Router A’s local network settings in the IP Address
and Subnet Mask fields.
In the IPSec Setup section, select the appropriate 10.
encryption, authentication, and other key management
settings.
In the 11. Preshared Key field, enter a string for this key, for
example, 13572468.
If you need more detailed settings, click 12. Advanced
Settings. Otherwise, click Save Settings and proceed
to the next section, “Configuration of Router A.”
Configuration of Router A
Follow these instructions for Router A.
Launch the web browser for a networked computer, 1.
designated PC 1.
Access the web-based utility of Router A. (Refer to the 2.
User Guide of the RVL200 for details.)
Click the3. IPSec VPN tab.
Click the 4. Gateway to Gateway tab.
Enter a name in the 5. Tunnel Name field.
For the VPN Tunnel setting, select 6. Enable.
For the Local Security Gateway Type, select 7. IP Only.
The WAN IP address of Router A will be automatically
detected.
For the Local Security Group Type, select Subnet. Enter
Router A’s local network settings in the IP Address and
Subnet Mask fields.
Router A’s IPSec VPN Settings
NOTE: This configuration is the same as the
configuration of Router A in scenario 1.
For the Remote Security Gateway Type, select 8. IP Only.
Enter Router B’s WAN IP address in the IP Address field.