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Acer 700 Series User Manual
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|  AcerRouter 700 User Guide B-1BRoutersAppendix B GlossaryThis section provides some common networking terms you may find in this userguide.ARP TableAddress Resolution Protocol table, a cache table that contains MAC address to IPaddress mapping information. To send an IP packet to another device on the sameLAN, the source device has to acquire the MAC address of the destination devicefirst. If such information is already maintained in the ARP cache, the correspondingMAC address will be used to transmit the data packet. Otherwise, the data will bequeued up first, and an ARP broadcast packet sent out to the LAN, and the destinationis expected to respond with the IP-to-MAC mapping. When the response is received,the data that was previously queued up will be transmitted, and the mappinginformation stored into the ARP cache table for re-use later.AuthenticationAuthentication is often used together with encryption, and can be enabled or disabledon a per serial interface basis. It is like a password used by both ends of a serialinterface to tell the other side who it is, and to make sure that the other end is who itclaims to be. Once this feature is enabled, every packet will contain the encryptedauthentication key, and any packet that fails the authentication will be dropped.Bootp Relay AgentA router that will forward bootp requests to bootp servers that do not reside in thesame network (the router can also be called a bootp proxy server for that reason). Arouter can be configured as a bootp relay agent, with up to 5 bootp servers configured.Whenever a bootp request is received by the router, the packet will be sent to each ofthe bootp servers.BridgeAn intelligent, multi-network interface device that is responsible for forward packetsbetween different interfaces based on data link layer address information. When apacket is received, its source MAC address will automatically be learned andmaintained in the bridging address table. At the same time, the forwarding decision ismade based on its destination MAC address by consulting the bridging address table.Bridge Address TableA table containing mapping (association) between MAC addresses and interfaces in abridge. The table is automatically learned (by inspecting each and every packet it seesfrom each interface) and used for packet forward decision making by the bridge. SeeBridge. |
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