Welcome to another mini-lab. This time its a straight forward and quite small ospf and eigrp setup. After that Pat is introduced, and then changed to a Dynamic Nat setup.
Part 1:
Configure your network as per the diagram above ( Viso File link )
edit: the dlci’s are backwards in the diagram. R1 should use dlci 102, R2 should use dlci 201.
This lab is compatible with my template.net from my Virtual Racks tutorial.
Part 2:
Enable Ospf process id 1 on routers 2, 3 and 4.
For R2 make the loopback 0 and Ethernet interface part of area 0
For R3 make the Ethernet interface area 0. Loopback 0 should be part of area 3
For R4 make the Ethernet interface area 0. Loopback 0 should be part of area 4
Verify ip connectivity between the three routers.
Part 3:
Configure Eigrp AS 10 on Routers 1 and 2.
For R1 include both the loopback and serial interface. Make sure the Loopback is advertised with a /24 mask.
For R2 only use the serial interface.
Verify that R2 can reach R1’s loopback address.
Question:
Can R1 ping R3 or R4? Why/why not
Part 4:
Configure PAT on R2. The serial interface should be the outside interface. Only allow the loopback addresses on R3 and R4 to be translated.
Use the Extended ping command from R3 and R4 to verify connectivity to R1’s loopback. If it isn’t working, Investigate the routing tables on all the devices.
You may configure any device to get this to work.
Part 5:
Configure pool based NAT on R2. The translation direction and allowed devices is the same as Part 4. Some of the Part 4 configuration needs to be removed. You may only configure R2 to get this to work.
The pool range is 34.0.0.1 – 34.0.0.10, prefix /24.
End.
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