DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
5-42
Virtual Private Networking
v1.0, May 2008
3.
In the
IKE SA Parameters
menu frame of the
Edit IKE Policy
menu, locate the Dead Peer
Detection configuration settings, as shown in
Figure 5-30
.
4.
Click the
Yes
radio button to
Enable Dead Peer Detection
.
5.
Enter the
Detection Period
to set the interval between consecutive DPD R-U-THERE
messages. DPD R-U-THERE messages are sent only when the IPSec traffic is idle. The
default is 10 seconds.
6.
In
Reconnect after failure count
, set the number of DPD failures allowed before tearing
down the connection. The default is 3 failures. When the DGFV338 senses an IKE connection
failure, it deletes the IPSec and IKE Security Association and forces a reestablishment of the
connection.
7.
Click
Apply
at the bottom of the menu.
Configuring NetBIOS Bridging with VPN
Windows networks use the Network Basic Input/Output System (NetBIOS) for several basic
network services such as naming and neighborhood device discovery. Because VPN routers do not
normally pass NetBIOS traffic, these network services do not work for hosts on opposite ends of a
VPN connection. To solve this problem, you can configure the DGFV338 to bridge NetBIOS
traffic over the VPN tunnel. To enable NetBIOS bridging on a configured VPN tunnel, follow
these steps:
1.
Select
VPN
from the main menu and
Policies
from the submenu.
2.
Click the
VPN Policies
tab, then click the
edit
button next to the desired VPN policy.
Figure 5-30
