SonicWALL Internet Security Appliances - Manual (Page 185)

Page 186 SonicWALL Internet Security Appliance Administrator’s Guide
Destination Networks
In this section, enter the network settings for the remote VPN site (the “Destination Network”).
Include the subnet mask which determines broadcast addresses for NetBIOS support.
•
Use this SA as the default route for all Internet traffic (Security Associations using IKE with Pre-
shared Secret and Manual Key) - Enable this check box if all remote VPN connections access
the Internet through this SA. You can only configure one SA to use this setting.
• Destination network obtains IP addresses using DHCP through this SA (Security Associations
using IKE and Pre-shared Secret but not Group VPN or Manual Key) - Enable this check box if
you are managing your IP address allocation from a central location.
• Specify destination networks below - Configure the destination networks for your VPN Security
Association. Click Destination Networks to enter the IP address and subnet mask.
Adding Destination Networks
To add a second destination network, click Add New Network... and define the Network and Subnet
Mask fields of the second network segment. To modify a destination network, click the Notepad icon
to the right of the appropriate destination network entry. Then modify the appropriate fields and
click Update to update the configuration. To delete a destination network, click the Trash Can icon
to the far right of the appropriate destination network entry and then click OK to confirm the
removal.
Modifying and Deleting Existing Security Associations
The Security Association menu also allows you to modify and delete existing Security Associations.
To delete an SA, select it from the list and click the Delete This SA button. To modify an SA, select it
from the list, make the desired changes, and click Update. Once the SonicWALL has been updated,
a message confirming the update is displayed at the bottom of the Web browser window. Click
Update to enable the changes.
Accessing Remote Resources across a Virtual Private Network
SonicWALL VPN Clients, which cannot transmit NetBIOS broadcasts, can access resources across a
VPN by locating a remote computer by IP address. For example, if a remote office has a Microsoft
®
SQL server, users at the local office can access the SQL server by using the server private IP
address.
There are several ways to facilitate connecting to a computer across a SonicWALL VPN:
•
Use the Find Computer tool
• Create a LMHOSTS file in a local computer registry
• Configure a WINS Server to resolve a name to a remote IP address.
For more information on accessing remote resources over a VPN,
<http://www.sonicwall.com/products/documentation/vpnremotehostswp.html.>