5-6 CHAPTER 5: C ONFIGURING B RIDGINGIP Forwarding refers to the routing of IP packets from one interface toanother. It does not affect communicating to the OfficeConnect Remote840 itself. Even when IP Forwarding is disabled, you can performnon-routing functions such as use the OfficeConnect Remote 840Manager from a Web browser and use PING.To bridge IP traffic:1 Add the bridge network over the LAN (see the instructions above).2 From the OfficeConnect Remote 840 home page, select Configuration> Global > IP > IP Settings. This brings up the IP Settings screen:3 Turn off IP forwarding by unchecking the Forwarding check box.4 Your browser will temporarily lose connection with the OfficeConnectRemote 840. Wait a few seconds, click the browser's Stop button; thenclick Reload.MAC-EncapsulatedRoutingBecause routers base their forwarding decision on network-leveladdresses, packets that are routed over a WAN are transmitted withoutMAC-layer addresses. Additionally, address resolution procedures thatcan be used to determine the destination MAC address for a packet arenot required.Conversely, packets that are bridged over a Wide Area Connectioninclude MAC-layer information. Address resolution procedures arerequired.MAC-Encapsulated Routing uses network-level addresses for forwardingdecisions but transmits MAC-layer addresses over the Wide AreaConnection. Additionally, address resolution procedures are used. To theremote site, the packets appear as if they had been bridged.This feature allows the routing features of the OfficeConnect Remote 840(i.e., address translation, DHCP Server, DNS Proxy, etc.) to be employed ina bridged environment.MAC-Encapsulated Routing is specified on a remote site basis. WhenMAC-Encapsulated Routing is enabled in a remote site profile, packets for840ug.book Page 6 Friday, July 7, 2000 2:23 PM
