iPECS SBG-1000 User Manual

iPECS SBG-1000 User Manual (DATA Features)
6.4.14.2 Enabling the Hybrid Bridging Mode
iPECS SBG-1000 enables you to bridge certain bandwidth-consuming and traffic-sensitive LAN
hosts, such as IPTV Set Top Boxes, directly to the WAN. Such a network connection scheme does
not interfere with iPECS SBG-1000’s routing mode, in which all traffic usually passes through the
NAT, and is checked by the firewall. These two modes can work simultaneously, if you have two
bridges under iPECS SBG-1000’s LAN network device:
LAN bridge Receives its IP address from iPECS SBG-1000’s DHCP server. The traffic passing
through the LAN on its way to the WAN is inspected by iPECS SBG-1000’s firewall, and assigned
a public address by the NAT.
WAN-LAN bridge Receives its IP address from the WAN DHCP server, thereby enabling direct
communication with the WAN.
iPECS SBG-1000 based on Linux 2.6 supports direct communication between devices placed
under the two bridges. For example, if you connect your IPTV Set Top Box with a Personal Video
Recorder (PVR) to iPECS SBG-1000’s WAN-LAN bridge, you will be able to access the content
recorded on the PVR from any home computer connected to iPECS SBG-1000’s LAN.
This network configuration is called Hybrid Bridging. iPECS SBG-1000 detects LAN hosts that
should be bridged to the WAN according to their MAC address or a specific DHCP option (either
Vendor Class ID, Client ID or User Class ID). Once detected, these LAN hosts are placed under
the WAN-LAN bridge, which you must add and configure for the hybrid bridging mode beforehand.
To add the WAN-LAN bridge, follow the Connection Wizard steps described in Section 6.4.14.1. In
the final step, check the ‘Edit the Newly Created Connection’ check box, and click ‘Finish’. The
‘Bridge Properties’ screen appears.
Figure 6.170 Bridge Properties
To configure the WAN-LAN bridge for the hybrid bridging mode, perform the following:
1. In the ‘Bridge Properties’ screen, click the ‘Routing’ tab. The following screen appears.
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