Specifications

B-FOCuS 270/285/400 PR Configuration Manual
ECI Telecom Ltd. Proprietary 18
2. Define:
• Interface. Only eth0 is supported, as the router acts as a DHCP Server towards
the LAN.
• IP address range for allocation in the LAN.
• Default gateway (the router’s IP address towards the LAN).
• Subnet mask.
• IP address of the Domain Name Server (DNS). Since the DNS resides in the
WAN, enter the IP address of the default gateway used to access the WAN.
• The number of days for leasing the address.
3. Click Apply.
4. Perform Save & Reboot.
5.2.2. The Router as a DHCP Relay
 To define the router as a DHCP relay:
1. Define the address of the DHCP in the WAN.
2. Change the DHCP Relay mode to Enable.
3. Click Apply.
4. Perform Save & Reboot.
5.3. Firewall
The firewall filters the traffic between the LAN and the WAN. Logically, it is
positioned before the router in the WAN, to filter the downstream traffic arriving from
the Internet and before the router in the LAN, to filter the upstream traffic from the
LAN towards the Internet.