Nortel Switched Firewall 2.3.3 User’s Guide and Command Reference
192
Layer 2 and Layer 3 Firewalls
213455-L, October 2005
Configuring the Firewall software
Figure 96
shows the network topology for configuring a Layer 2 bridge mode firewall. NSF#1
and NSF#2 are configured for a layer 2 bridge mode firewall. The Layer 2 bridge is configured
on interfaces eth2 and eth3 on ports 3 and 4. The sync and management (172.16.2.144/145)
networks are configured on the port 1.
Figure 96
Configuring Layer 2 Bridging Firewall
L2 switch
L2 switch
L2 switch
Host 1
Host 2
Host 3
Host 4
eth3
eth2
eth3
eth2
Firewall console
Management Station
172.16.2.147
MIP: 172.16.2.145
NSF#1
172.16.5.11
172.16.5.12
172.16.5.13
172.16.5.14
NSF#2
1
4
3
1
4
3
172.16.2.143
172.16.2.144
2
2
192.168.1.6
192.168.1.5