User manual

- BaseWall VPN 6000 user manual -
6 Wizard: VPN IPSec tunnels
6.1 VPN IPSec tunnels
VPN (Virtual Private Network) IPSec (Internet Protocol Security) tunnels are
used to connect two or more LAN's though the Internet in a secure manner.
Usually, whenever a company needs to make a common computing or
information resource available on multiple locations, a VPN IPSec tunnel is the
best solution.
A VPN IPSec tunnel is an encrypted Internet connection between two routers on
separate networks. All traffic from one network to the other network is sent
over this encrypted connection. This way, other (possibly malignant) Internet
users are prevented from reading the encrypted content. Also, other Internet
users are prevented from impersonating valid users on any of the local
networks (and accessing restricted information in this manner).
Authentication and encryption require that both ends of the tunnel be aware of
a common key. Your BaseWall VPN 6000 supports authentication based either
on a pre-shared key or on a security certificate.
For a VPN IPSec tunnel to work, both LAN's to be connected do not need to be
directly connected to the Internet. However, both will have to have access to a
router of firewall that does have an active Internet connection. One of these
routers will be the BaseWall VPN 6000 we are configuring. The other router or
firewall can be any router or firewall that supports VPN IPSec tunnels.
6.2 Managing VPN IPSec tunnels
To manage VPN IPSec tunnels on your firewall:
➔ Click on the “VPN IPSec tunnels” text under “Setup subsystems” on the left-
hand side of the screen in the “Configuration” context.
The “List IPSec tunnels” screen should appear.
In the “List IPSec-tunnels screen you have the option of adding, editing or
removing IPSec tunnels.
6.3 Adding a VPN IPSec tunnel to a remote network
To add a VPN IPSec tunnel to a remote network:
➔ From the “List IPSec-tunnels” screen, click the “Add new” button.
The “List IPSec-tunnels” screen should change tot the “Create IPSec-tunnel”
view.
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