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8. Define a Shared Secret. Write down this key as it is required when configuring
the San Francisco Office SonicWALL TELE2.
9. Click Add New Network... to open the VPN Destination Network window and
enter the destination network addresses.
10. Enter the IP address and subnet mask of the destination network, the San Francis-
co office, in the Network and Subnet Mask fields. Since NAT is enabled at the
San Francisco office, enter a private LAN IP address. In this example, enter
"192.168.1.1" and subnet mask "255.255.255.0."
Note: The Destination Network Address must NOT be in the local network's
address range. Therefore, the San Francisco and Chicago offices must have different
LAN IP address ranges.
11. Click Advanced Settings.
12. Check Enable Keep Alive if you want the SA to check for an active VPN tunnel
while the tunnel is connected.
13. Check Enable Perfect Forward Secrecy for added security.
14. Check Enable Windows Networking (NetBIOS) broadcast if the remote site
is allowed access to network resources by browsing the Windows Network Neigh-
borhood.
15. Check Apply NAT and firewall rules if applicable.
16. Check Forward Packets to Remote VPNs if configuring a "hub and spoke"net-
work.
17. Check Route all Internet Traffic through this SA if configuring a remote site
without access to the Internet via the VPN tunnel.
18. Enter the Default LAN Gateway if Route all Internet traffic through this SA
is checked.
19. Click OK to close the Advanced Settings window.
20. Click Update to add the remote network and close the VPN Destination Net-
work window. Once the SonicWALL GX250 is updated, a message confirming the
update is displayed at the bottom of the browser window.
Configuring a SonicWALL TELE2 in San Francisco
1. Enter the SonicWALL TELE2 Unique Firewall Identifier in the VPN Summary
window, in this example, "San Francisco Office."
2. Select -Add New SA- from the Security Association menu.
3. Select IKE using pre-shared secret from the IPSec Keying Mode menu.
4. Enter the SonicWALL GX250 Unique Firewall Identifier in the SonicWALL TELE2
Name field, in this example, "Chicago Office."
Page 140 SONICWALL VPN
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