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Configuring Frame Relay, Part 4

July 8, 2009

Alright, we’ve finally made it to the last of the four-part series on configuring frame-relay. If you haven’t been following along, you may want to check out part one, part two, and part three before continuing. In part four, we’ll continue on where we left off in part three. Our topology is shown here: OSPF […]

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Configuring Frame-Relay, Part 3

July 7, 2009

Okay, after much delay here’s part 3 of the “Configuring Frame-Relay” series. In part 3, we’ll combine what we’ve learned from part one and part two and work with this topology: As you can see from the diagram, we’ll be using the physical serial 0/0 interfaces to connect R1, R2, and R3. In addition, we’ve […]

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Configuring OSPF Authentication (Dynamips)

November 26, 2008

Let’s continue on from yesterday’s lab, “Configuring Basic OSPF“. We’ve had a new requirement added to our original design: authenticated OSPF. Our security team has decided that it is a potential security risk to run unauthenticated OSPF across our network backbone and have asked us to implement a secure method of sending OSPF updates. OSPF […]

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Configuring Basic OSPF (Dynamips)

November 25, 2008

In this lab, we have three routers at multiple locations that are connected through a switch, as shown in the diagram below: We have been tasked with setting up OSPF on this network, with a few specific requirements: We must ensure that the ISP router is the designated router (DR) We must ensure that the […]

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Administrative Distances

March 28, 2008

Administrative distances: Directly connected: 0 Static route using exit interface: 0 Static route using next-hop ip: 1 EIGRP summary: 5 External BGP: 20 Internal EIGRP: 90 IGRP: 100 OSPF: 110 RIP: 120 External EIGRP: 170 Internal BGP: 200 Unknown network: 255

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