Motorola Canopy Powerline MU - Manual (Page 48)

Powerline MU
Page 48 of 112
The LAN ports can be used for:
•
Extending the network to other Powerline Gateways or other Ethernet based IP
devices since these ports are Bridged.
Next, Powerline Modems can now be configured for VLAN pass-through by entering the
VPID (VLAN Pass-Through ID) for the Modem. For example (as shown in Figure 6),
Ethernet packets from devices connected to the Modem will be sent to the LAN port of
the Gateway and tagged with the Modem’s PLC (Powerline) MAC address
(1a:00:3e:b0:19:17 ). Depending on whether the request packets were tagged with the
Management VLAN ID or VPID, the response packets will be tagged with the respective
VLAN ID. For example, if a PC connected to the LAN port of the Gateway sends packets
tagged with VLAN ID = 4094, then the Modem will respond with VLAN ID 4094. If the PC
pings with VLAN ID = 4 (Management VLAN ID), the Modem will respond with VLAN ID
4.
Note: Pass-through VPID can not be the same as the Powerline Management VID.
Powerline MU Modems have a powerful feature that will tag and un-tag packets, however
there is about a 15% decrease in aggregate bandwidth availability because of the
overhead in processing VLAN packets.
DHCP packets sent from the LAN port of the Gateway to the DHCP server will be tagged
with the Management VLAN ID of the Powerline network. To ensure proper network
operation, you will need to either un-tag and tag packets from your DHCP server or install
a VLAN capable network card on the DHCP server.
DMZ can be configured when using the Modem in NAT mode; however, you will not be
able to access the WAN IP address of the Modem until an Ethernet device is connected
to the LAN port of the Modem. As in the prior example, the Modem will match ingress
packet VLAN ID with egress VLAN ID.
Figure 28 Example of VLAN Configuration Screen in the Gateway.