Aaron's Worthless Words

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350-001

EIGRP Notes - Authentication

Corrections – I invite them. 1. Create the keys in the keychain. R101(config)#key chain KEYCHAIN R101(config-keychain)#key 1 R101(config-keychain-key)#key-str R101(config-keychain-key)#key-string MYKEY 2. Enable authentication on an interface. R101(config-if)#ip authentication mode eigrp 1 md5 3. Associate keychain with EIGRP. ip authentication key-chain eigrp

OSPF Notes - Authentication

Corrections appreciated. Type 0 : No authentication. This is the default type. R0(config-if)#ip ospf authentication null ----- R0(config-router)#area 1 virtual-link 2.2.2.2 authentication null Type 1 : Clear text authentication ----- R0(config-if)#ip ospf authentication - or - R0(config-router)#area 1 authentication R0(config-if)

BGP Notes - Path Decision

This is required blogging…and reading for that matter. A good chunk of this is taken from my CCNP posts from last year. Corrections, please. —– How does a BGP router decide which BGP route is the best? Next-hop : Does the router have a route to the next-hop? Weight : This is

BGP Notes - Path Attribute Categories

Make my corrections! Please! Well-known mandatory : These PAs must be recognized by all BGP routers and passed along to other peers. Well-known discretionary : These PAs do not need to be in every update, but they must be recognized by all BGP routers. Optional transitive : These PAs don’t have to

BGP Notes - Neighbor States

Corrections appreciated. Idle : There is no relationship, but the router sends out a TCP SYN to the neighbor to get the ball rolling. Idle (admin) : The neighbor is admined down. Connect : The router is waiting for the TCP connection to finish. If the TCP connection finishes, the router sends an

BGP Notes - Message Types

Corrigeme, por favor. Open : When a neighbor is configured, the router sends an open to that neighbor to get the ball rolling. Destination: The neighbor's configured IP Important fields: My AS Update : The routing information Destination: The neighbor's configured IP Important fields: Advertised network Klonopin Online

EIGRP Notes - Route Filtering

As always, correction are encouraged. You can configure an EIGRP router to filter routes from being advertised or from being accepted. Objective: Filter out the route to 10.0.254.1/32 from being advertised to the rest of the network via EIGRP. ip prefix-list PRE1 deny 10.0.254.