User's Manual Part 1

3: Detailed Description
APCD-LM043-8.0 (DRAFT C) 23
The network configuration in Figure 15 illustrates Switched Ethernet mode where the CCU
supports a single IP subnet on the radio interface, all EUMs and subscribers are on the same
subnet.
Figure 15 Switched Ethernet Mode with a Single Subnet
Switched Ethernet mode supports IP, ARP and PPPoE packets. The IP forwarding function of
the CCU is disabled, preventing routing through the CCU.
NOTE: PPPoE incurs more overhead than IP directly over Ethernet,
leading to about 2% slower downloads.
3.2.3 Through Only Mode
Through Only mode on a CCU behaves similarly to Switched Ethernet mode except that all
network traffic (except traffic to the CCU) is constrained to flow only from the CCU’s radio
interface to its Ethernet interface or vice versa. For EUMs on the same CCU to communicate,
you must make provisions externally to send the packets back through the Ethernet link, using
either the PPPoE server or an associated router. In addition, the IP forwarding function of the
CCU is disabled, preventing routing through the CCU.
NOTE: Through Only mode supports the network configurations
described above.
NOTE: Through Only mode is a special case intended for PPPoE-only
support. Contact WaveRider Technical Support for details.
CCU3000
Antenna
EUM
Switch
Internet
subscriber
DHCP, RADIUS Server
Router
Interface 0/1
192.168.60.1/24
Interface 0/0
10.2.23.6/24
192.168.60.10/24
192.168.60.7/24
192.168.60.5/24
192.168.60.101/24
192.168.60.201/24
EUM
subscriber
192.168.60.102/24
192.168.60.202/24
Gateway for EUMs & Suscriber:
192.168.60.1