Dell SonicWALL GX250 Manual page 138

• Authenticate (AH SHA-1) uses SHA-1 instead of MD5.
• Authenticate (ESP MD5) does not provide data confidentiality (no data encryp-
tion), but it uses MD5 for authentication.
• Authenticate (ESP SHA-1) similar to MD5 but uses SHA-1 for authentication.
7. Enter a alphanumeric "secret" in the Shared Secret field. The Shared Secret
must match the corresponding field in the remote SonicWALL. This field may range
from 4 to 128 characters in length and is case sensitive.
8. Click Add New Network... to define the destination network addresses. Clicking
Add New Network... updates the VPN configuration and opens the VPN Desti-
nation Network window.
9. Enter the IP address of the remote network in the Network field. This address is
a private address if the remote LAN has enabled NAT.
10. Enter the subnet mask of the remote network in the Subnet mask field.
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 has been updated, a message confirming the
update is displayed at the bottom of the browser window.
Page 138 SONICWALL VPN