Secure Computing SG300 User Manual page 222

Warning
It may be necessary to reduce the MTU of the IPSec interface if large packets of data are
not being transmitted.
Configure a tunnel to connect to the headquarters office
To create an IPSec tunnel, click the IPSec link on the left side of the web management
console and then click the Advanced under Tunnel List. A window similar to the
following displays:
Tunnel settings page
Fill in the Tunnel name field with a description for the tunnel. The name must not
contain spaces or start with a number. In this example, enter Headquarters.
Leave the Enable this tunnel checkbox checked.
From the Local Interface drop-down, select the interface the IPSec tunnel is to go out
on. The options depend on what is currently configured on the SnapGear unit. For the
vast majority of setups, this is the default gateway interface to the Internet. In this
example, select the default gateway interface option.
Virtual Private Networking
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