Nortel Switched Firewall 2.3.3 User’s Guide and Command Reference
202
Layer 2 and Layer 3 Firewalls
213455-L, October 2005
Configuring a Layer 3 Firewall
When you use Nortel Switched Firewall 2.3.3 you can configure a Layer 3 mode Firewall
using the CLI or the BBI. To configure a Layer 3 Firewall, use the following procedures:
1.
Configuring the Firewall software
2.
Configuring the Check Point software to support a Layer 3 Firewall
Configuring the Firewall software
Figure 104
shows the network topology for configuring a Layer 3 Firewall. NSF#1 and NSF#2
are configured for a Layer 3 Firewall. The Layer 3 Firewall is configured on interfaces eth2
and eth3 on ports 3 and 4. The external network is configured on port 2. The sync and
management (172.16.2.144/145) networks are configured on the port 1.