Answers.com > Wiki Answers > Categories > Technology > Computers > Computer Networking > How does routers forward and router the packet?

How does routers forward and router the packet?

In: Computer Networking, Computer Terminology, Local Area Network [Edit categories]

Answer:

Entire chapters in the Cisco Networking Academy are dedicated to this topic. But basically, a router looks at the IP packet, and compares it to its routing table. The routing table says, for example, "Every packet for the destination network 10.0.5.0 /24 should be sent out of port Ethernet 2/1, next-hop address is 10.0.7.2". "/24" in this case means that the first 24 bits must match.

The routing table itself is maintained manually (static routes), or updated through a routing protocol from neighboring routers.

First answer by Hilmarz. Last edit by Hilmarz. Contributor trust: 802 [recommend contributor ]. Question popularity: 1 [recommend question].

[report abuse]

Can you answer these Computer Networking questions?

	What does a jack socket do?	Answer it!
	Does A P2P network needs network operating system software installed on every node?	Answer it!
	How do you use the ARIN WHOIS service to get IP address for a website?	Answer it!
	What are two differences Logical addresses and physical addresses?	Answer it!
	What are the security aspects of FON?	Answer it!

Relevant answers:

Why do routers forward packets slow?
Granted a router is a slower device than a hub, repeater, or switch or bridge. This is because it must look at the entire frame and decode the layer 3 information to decide whether or not to...
What information is used by a router to forward packets?
The IP address. The router compares the destination IP address of an IP packet with the router's routing table, which says, for example, "everything that starts with 172.16.5 should be sent out...
In an ipv4 environment what is used by the router to forward data packets from one router?
Destination network address
What is a router and What does a router do?
A router passes traffic between networks to reach other computers or servers. A router also does NAT. Nat masquerades traffic behind the router with private IP(Non-internet route able) with the...
Which portion of the packet does a router use to forward the packet to the destination?
way