Router: Difference between revisions
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A router is a computer that forwards [[OSI]] layer 3 packets from [[interface]] to [[interface]]. It has a table (set of rules) called a routing table that makes it determine what interface it should sent a packet out on. Routers decrement the [[IP]] time-to-live on the packet they receive before they pass it on, meaning they have to recompute the checksum on the IP header. | A router is a computer that forwards [[OSI]] layer 3 packets from [[network interface]] to [[network interface]]. It has a table (set of rules) called a routing table that makes it determine what interface it should sent a packet out on. Routers decrement the [[IP]] time-to-live on the packet they receive before they pass it on, meaning they have to recompute the checksum on the IP header. | ||
Revision as of 15:47, 3 December 2005
A router is a computer that forwards OSI layer 3 packets from network interface to network interface. It has a table (set of rules) called a routing table that makes it determine what interface it should sent a packet out on. Routers decrement the IP time-to-live on the packet they receive before they pass it on, meaning they have to recompute the checksum on the IP header.
