Configuring IP Broadcast Helper in Gaia Portal

Important - In a Cluster Two or more Security Gateways that work together in a redundant configuration - High Availability, or Load Sharing., you must configure all the Cluster Members in the same way.

1. From the left navigation tree, click Advanced Routing > IP Broadcast Helper.

2. In the IP Broadcast Helper section, the Forward Non-local Packets option controls whether packets are forwarded that are not locally originated by a source directly on the receiving interface.

   • Select this option to forward packets, even if the source is not directly on the receiving interface. Click Apply.

   • Clear this option (this is the default) to require that packets are generated by a source that is directly on the receiving interface to be eligible for relay. Click Apply.

3. In the Configure Relays section, configure the interface, on which the IP helper service runs.

   1. Click Add.

   2. In the Interface field, select the applicable interface.

   3. In the UDP Port field, enter the number of the UDP port in the client UDP packets that should be forwarded by the interface to the relay destination.

      Important - You cannot use ports 67 and 68 that are reserved for DHCP Relay.

      Range: 1-65535

   4. In the Relay field, enter the IPv4 unicast address (x.x.x.x) or IPv4 broadcast address (255.255.255.255), to which the interface forwards the client UDP packets.

      You can configure more than one relay IPv4 address.

      Important: The IPv4 address specified must not be an address belonging to the local machine. Packets are not forwarded to any destination IP address that uses the same interface as the incoming UDP broadcast.

   5. Click Save.