Wavion WBS-2400 User Manual page 59

Figure 3.16 Limiting the multicast rate
Peer traffic policing
When peer-2-peer communication is blocked, all wireless clients are expected to communicate
only with the Default GW. There may be cases in which the network operator wishes to allow
peer-2-peer communication that goes through a specific router in the backhaul network, for
monitoring and accounting. This option is possible by applying the Proxy ARP feature.
When peer-2-peer communication is blocked, WBS software sends wireless traffic only to the
backhaul interface; including ARP and Gratuitous ARP packets. In layer-2 networks Gratuitous
ARP serve as enablers for detecting duplicate IP addresses in the network. Since WBS doesn't
send the Gratuitous ARP back to the wireless network, the network devices will not be able to
detect Duplicate IP.
Figure 3.17 Blocking peer-to-peer traffic
LLC Encapsulation
All frames transmitted through the 802.11 interface must have an LLC header. For frames
received at the WBS side of the link without an LLC header (mainly frames with EtherTypes
59 Wavion
Managing Network Interfaces