W&T Microwall Gigabit 55210, Manual

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44
W&T
Operation modes and rule configuration
5�5 Examples Firewall rules
5�5�1 Mode Standard router, Network 2 to Network 1
Island host
B
10.110.0.10/16 at the Network 2 port is to ac-
cess the Intranet Web Server
A
10.20.0.4/16, TCP/80 at the
Network 1 port via browser. The respective local IP addresses
of the Microwall are 10.110.0.1 and 10.20.0.55. For view fil-
tering in the rule overview, the rule is marked with the label
Normal mode .
Network 1 (Intranet):
Net-ID:
10.20.0.0/16
Standard Gateway:
10.20.0.1
10.20.0.55
Network 2 (Island):
Net-ID:
10.110.0.0/16
Standard Gateway:
10.110.0.1
10.110.0.1
Web server
IP: 10.20.0.4/16
Gateway: 10.20.0.1
Static route:
10.110.0.0/16 via 10.20.0.55
Host x
IP: 10.110.0.10/16
Gateway: 10.110.0.1
Browser
Dest. IP: 10.20.0.4
Microwall rule
DstIP 10.20.0.4
DstPort TCP/80
SrcIP 10.110.0.10
SrcPort ALL
ACCEPT
A
A
B
B
1
2