Contemporary Controls EIGR Series Application Manual page 9

Application #5 – Disable the Firewall for Unrestricted Routing
There are times when you may want to disable the firewall.
The firewall controls the passing of messages from the
public (WAN) side of the router to the private (LAN) side
— and normally this protects the private side from
unauthorized public access.
192.168.92.1/24
192.168.92.2/24
192.168.92.3/24
Under the Advanced Tab, you may choose to disable the
firewall. Typically, the firewall is disabled when the LANs on
both sides of the router are within one organization. That is,
there is no public side — both sides are essentially private,
so no firewall is needed.
LAN IP Address WAN IP Address
192.168.92.1/24 192.168.80.10/24
192.168.92.2/24 192.168.80.20/24
192.168.92.3/24 192.168.80.30/24
192.168.80.10
192.168.80.20
STATUS PWR
RESET
192.168.80.30
H
WAN
L
1
2
LAN
3
4
9
Application Guide – EIGR Series
PWR
H
1
L
2
3
4
5
192.168.80.10/24
192.168.80.20/24
192.168.80.30/24
AG-EIGR0000-AA0