SonicWALL Internet Security Appliances - Manual (Page 186)

SonicWALL VPN Page 187
Advanced Settings
All of the Advanced Settings for VPN connections are accessed by clicking the Advanced Settings
button located on the Configure tab. The following settings are available in the Edit Advanced
Settings window:
•
Enable Keep Alive
- Try to bring up all possible SAs
• Require authentication of local users
• Require authentication of remote users
- Remote users behind VPN gateway
- Remote VPN clients with XAUTH
• Enable Windows Networking (NetBIOS) broadcast
• Apply NAT and firewall rules
• Forward packets to remote VPNs
• Enable Perfect Forward Secrecy
• Phase 2 DH Group
• Default LAN Gateway
• VPN Terminated at LAN, DMZ, or LAN/DMZ
Enable Keep Alive
Selecting the Enable Keep Alive check box allows the VPN tunnel to remain active or maintain its
current connection by listening for traffic on the network segment between the two connections.
Interruption of the signal forces the tunnel to renegotiate the connection.
Try to bring up all possible SAs
If multiple SAs are configured on the SonicWALL, select this feature to have the SonicWALL
renegotiate the tunnels if they lose communication with the SonicWALL.