Dell SonicWALL GX250 Manual page 126

Note: Each Security Association must have unique SPIs; no two Security Associations
can share the same SPIs. However, each Security Association's Incoming SPI may be
the same as the Outgoing SPI
7. Select Encrypt and Authenticate (ESP DES HMAC MD5) from the Encryp-
tion Method menu.
8. Enter a 16 character hexadecimal encryption key in the Encryption Key field or
use the default value. This encryption key is used to configure the remote Son-
icWALL client's encryption key, therefore, write it down to use while configuring
the client.
9. Enter a 32 character hexadecimal authentication key in the Authentication Key
field or use the default value. Write down the key to use while configuring the client
settings.
Note: Valid hexadecimal characters include 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a,b, c, d, e, and
f. 1234567890abcdef is an example of a valid DES or ARCFour encryption key. If you
enter an incorrect encryption key, an error message is displayed at the bottom of the
browser window
10. Click Add New Network... to enter the destination network addresses. Clicking
Add New Network... automatically updates the VPN configuration and opens the
VPN Destination Network window.
11. Enter "0.0.0.0" in the Range Start, Range End, and Destination Subnet Mask
for NetBIOS broadcast fields.
12. Click Advanced Settings.
13. Check Enable Windows Networking (NetBIOS) broadcast if the remote site
is allowed access to network resources by browsing the Windows Network Neigh-
borhood.
14. Check Apply NAT and firewall rules if applicable.
15. Check Forward Packets to Remote VPNs if configuring a "hub and spoke"net-
work.
16. Check Route all Internet Traffic through this SA if configuring a remote site
Security Association with access to the Internet via the VPN tunnel. If configuring
a central site Security Association, this checkbox does not apply.
17. Enter the Default LAN Gateway if Route all Internet traffic through this SA
is checked for a remote site Security Association and you are configuring a corre-
sponding central site Security Association.
18. Click OK to close the Advanced Settings window.
19. Click Update to add the remote network and close the VPN Destination Net-
work window. Once the SonicWALL has been updated, a message confirming the
update is displayed at the bottom of the browser window.
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