User's Manual

001-2019-500 Rev 0
Paragon4 – UHF, 700 & 800MHz User Manual
50
Example (Directed Broadcast forwarding disabled)
Figure 41 - Example of Directed broadcast forwarding disabled
In this example (Figure 41), directed broadcast forwarding is enabled on the Base unit and disabled on the
Mobile (1) unit. If Sender sends a packet to destination address 172.30.1.255, the packet would be dis-
carded by Mobile (1), it would not reach Mobile Host (1), Mobile Host (2) and Mobile Host (3).
If the user wants the Base unit to do the discarding of the directed broadcast packets, then the directed
broadcast forwarding must be disabled on the Base unit itself.
6.8.5.1.1.2 Limited Broadcast
The “Limited Broadcast” enabled/disabled option buttons control limited broadcast packets forwarding.
When enabled, the unit forwards limited broadcast packets.
Upon reception of a limited broadcast packet, the unit takes the following actions:
Keeps a copy for itself (passes to internal applications, if any).
If limited broadcast packets can be forwarded (Limited Broadcast is enabled):
Sends a copy of the packet out to all the interfaces with the exception of the interface where the pack-
et was received.
If limited broadcast packets cannot be forwarded (Limited Broadcast is disabled):
Silently discards the packet.
Sender
Base (P4)
Mobile (1)
172.30.1.1/24
Mobile (2)
172.30.3.1/24
10.0.0.1/8
10.0.0.2/8
10.0.0.4/8
Directed broadcast forward-
ing enabled
Directed broadcast forward-
ing disabled
Send to 172.30.1.255
Mobile
Host(2)
172.30.1.3/2
Mobile
Host(3)
172.30.1.4/2
Mobile
Host(1)
172.30.1.2/2
Mobile
Host(4)
172.30.3.2/2