CCNA Chapter 9

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  1. What are the 3 conditions that must be met for EIGRP to establish a neighborship?
    • Hellos received
    • AS numbers match
    • Identical metrics (k value)
  2. How do you set up EIGRP on a router?
    • R1# config t
    • R1(config)#router eigrp autonomous system number ex. 10
    • R1(config-router)#network "network number"
  3. How do you set up OSPF on a router?
    • R1#config t
    • R1(config)#router ospf "process  ID" <0-65535>
    • R1(config-router)#network area 0

    Wild cards start with 0's on the left. reverse of subnet masks.
  4. With OSPF how does the router decide it's RID (Router ID)?
    • The router uses the highes active IP address for the RID. 
    • The RID is used to advertise the routes ans well as elect the DR and BDR.
    • Highest active interface by default
    • Highest logical address will over ride a physical interface
    • The router-id overrides the interface and loopback interfaces
  5. How do you manually set the RID with OSPF on a router?
    • R1#config t
    • R1(config)#router ospf 10
    • R1(config-router)#router-id "ip addres" (
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CCNA Chapter 9
2012-12-06 03:09:41
CCNA Chaper

CCNA Chaper 9
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