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How to configure EIGRP on cisco 2600 router

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  #1  
Old 08-04-2009
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How to configure EIGRP on cisco 2600 router
  

Hey Guys!
I am new to core cisco networking. I am still at a learning stage...! Well i'm doing CCNA and want to go ahead of the syllabus as the previous lectures are being repeated...! Can anyone help me with this? What is EIGRP and how to configure EIGRP protocol on my cisco 2600 router... I own 3 routers, all are cisco 2600... An i practise on the routers live...! Thanks in advance...!

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  #2  
Old 08-04-2009
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Re: How to configure EIGRP on cisco 2600 router

Hey!
Thats nice...! About EIGRP.

What is EIGRP?

Enhanced Interior Gateway Routing Protocol - (EIGRP) is a Cisco proprietary routing protocol loosely based on their original IGRP. EIGRP is an advanced distance-vector routing protocol, with optimizations to minimize both the routing instability incurred after topology changes, as well as the use of bandwidth and processing power in the router. Routers that support EIGRP will automatically redistribute route information to IGRP neighbors by converting the 32 bit EIGRP metric to the 24 bit IGRP metric. Most of the routing optimizations are based on the Diffusing Update Algorithm (DUAL) work from SRI, which guarantees loop-free operation and provides a mechanism for fast convergence.

someone will help you configure it... I don't know how to...!
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  #3  
Old 08-04-2009
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Re: How to configure EIGRP on cisco 2600 router

Operation Basics of EIGRP

The data EIGRP collects is stored in three tables:
  • Neighbor Table: Stores data about the neighboring routers, i.e. those directly accessible through directly connected interfaces.
  • Topology Table: Confusingly named, this table does not store an overview of the complete network topology; rather, it effectively contains only the aggregation of the routing tables gathered from all directly connected neighbors. This table contains a list of destination networks in the EIGRP-routed network together with their respective metrics. Also for every destination, a successor and a feasible successor are identified and stored in the table if they exist. Every destination in the topology table can be marked either as "Passive", which is the state when the routing has stabilized and the router knows the route to the destination, or "Active" when the topology has changed and the router is in the process of (actively) updating its route to that destination.
  • Routing table: Stores the actual routes to all destinations; the routing table is populated from the topology table with every destination network that has its successor and optionally feasible successor identified (if unequal-cost load-balancing is enabled using the variance command). The successors and feasible successors serve as the next hop routers for these destinations.
Unlike most other distance vector protocols, EIGRP does not rely on periodic route dumps in order to maintain its topology table. Routing information is exchanged only upon the establishment of new neighbor adjacencies, after which only changes are sent.
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Old 08-04-2009
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Re: How to configure EIGRP on cisco 2600 router

Hey!

Configuring EIGRP is quite simple..! I've some examples via which you will be able to do it yourself....! If still you have any doubt, do post...!


Setting up EIGRP on a Cisco router using classful IP addressing :
Code:
Router> enable
Router# config terminal
Router(config)# router eigrp ?
  <1-65535>  Autonomous system number
Router(config)# router eigrp 10
Router(config-router)# network 192.168.0.0
Router(config-router)# end
Setting up EIGRP on a Cisco router using classless IP addressing :

Code:
Router> enable
Router# config terminal
Router(config)# router eigrp 10
Router(config-router)# network 100.20.196.0 ?
  A.B.C.D  EIGRP wild card bits
  <cr>
Router(config-router)# network 100.20.196.0 0.0.15.255
Router(config-router)# no auto-summary
Router(config-router)# end
Make Autonomous system number is same on the routers you connect through EIGRP protocol...! I have use 10 in my examples...!


Simple right? All the best...!
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