Network Engineer – F.O.C.U.S Follow One Course Until Successful
N WLLA OMNI N = next hop reachability W = weight, bigger is better L = local preference, bigger is better L = locally injected preferred over BGP learned A = AS path length, shorter is better O =…
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Reminder OSPF is a Link State routing protocol that calls for the sending of link-state advertisements (LSAs) to all other routers within the same hierarchical area. Information on attached interfaces, metrics used, and other variables is included in OSPF LSAs….
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GNS3 Lab click here Route Redistribution Basic When you redistribute one protocol into another, remember that the metrics of each protocol play an important role in redistribution. Each protocol uses different metrics. For example, the Routing Information Protocol (RIP) metric…
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When a Packet arrive on the interface of a router the router take several logical decisions base on the data plane to process the packet. The packet arrive encapsulated inside the data link frame , so the router check the…
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1. Enable IS-IS 2. Configure the NET Address 3. Configure IS-IS on the interfaces and Loopback 4. Select which circuit type 5. Verify your configuration . Example Configuration : (config)#router isis (config-router)#net ( Address ) (config)#interface ( interfaces ) (config-if)#ip router…
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Nat allows a single device to act as an Internet gateway for internal LAN clients by translating the clients’ internal network IP Addresses into the IP Address on the NAT-enabled gateway device.In other words, NAT runs on the device that’s connected…
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Command Purpose Step 1 Router(config)# aaa new-model Enables AAA globally. Step 2 Router(config)# aaa authentication login {default |list-name} method1 [method2…] Creates a local authentication list. Step 3 Router(config)# line [aux | console | tty | vty]line-number [ending-line-number] Enters line configuration mode for the lines…
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PAP is an authentication protocol that can be used with PPP. When PAP is used, the user name and the password of the originating router are sent over the link in plain text. CHAP is an authentication protocol that can…
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(config)#ipv6 unicast-routing ( enable ipv6 routing ) (config)#ipv6 router eigrp “ID” (config-rtr)#router-id x.x.x.x (config-rtr)#no shutdown ( enable eigrp ipv6 routing process ) (config-if)#interface ( interface ) (config-if)#ipv6 eigrp “ID” Verifying configuration : show ipv6 protocols show ipv6 eigrp neighbors show…
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Cisco NetFlow feature to capture statistics about network traffic flows that pass through a router. Although Cisco considers a series of packets a flow if they share, at a minimum, the same source and destination IP addresses, a flow s defined…
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