Day 15 – Lab time | Stuff that a middle age man is still learning

Looking for a new position while studying is a true challenge. The funny thing is there are positions that request the CCNA to be able to apply so finding the right balance of studying for the test and applying for jobs is very interesting. At this point, I feel that I am ready to take the test but with the cost of the test, I really only want to take it once and reading online some of the posts make me nervous that I need to study more as some of the questions can be a bit tricky in the wording.

So the plan is to go through the labs that came with the Udemy study guide, do the labs that I have downloaded from Keith Baker’s website as well as go through his weekly CCNA quizzes and then take the test….

Lab 16 – Routing Fundamentals

Rename the router Hostnames
- #conf t
- (config)#hostname [name]
Assign IP address
- #conf t
- #int [interface]
- ip address [IP address] [Subnet]
- no shut
Verify Routes
- #show ip route
  - It asks if I can see all the directly connected router switches and the question is supposed to “No I cannot”, and that is because it asked to just configure on the router and I did all routers so I can see all directly connected routes and not only the switches.
Should you be able to ping from PC1 to PC2?
- Yes, the PCs are on networks that the router knows about, so traffic is passed successfully.
Should you be able to ping from PC1 to PC3?
- No this is due to Router not knowing about networks other than the ones that are directly connected.
Configure IP address on R2, R3, and R4
- Complete in the first step, actually before naming the routers.
Configure static routes on R1-R4 to allow connectivity between all subnets.
- #conf t
- (config)#ip address [IP range] [subnet] [gateway]
Remove all static routes from R1 and create on route for all 10.1.0.0 address
- no ip address [IP Range] [Subnet] [gateway]
- ip address 10.1.0.0 255.255.0.0 10.0.0.2
Default gateway
- (config)# ip route 0.0.0.0 0.0.0.0 [gateway]

Lab 17 – Dynamic Routing Protocols – Using same network at Lab 16

RIP
- Config RIPv1 on each router
  - #conf t
  - (config)#route rip
  - (config-router)#network [ip range]
  - (config-router)#no auto-summary
    - Requested in the lab notes.
- Debug RIP on R1
  - debug ip rip
- What type of traffic is being sent (unicast, broadcast or multicast)
  - Broadcast 255.255.255.255
- Enter the commands to enable RIPv2 on all routers
  - #conf t
  - (config)# route rip
  - (config-router)#version 2
- What type of traffic is being sent (unicast, broadcast or multicast) with version 2
  - Multicast
    - RIP: sending v2 update to 224.0.0.9 via [interface] ([IP address])
- Turn off debugging
  - #no debug all
- Check RIP routes
  - #show ip route
OSPF
- Turn on OSPF on all routers
  - (config)#route ospf [ID]
  - (config-router)#network [IP Range] [reverse subnet] area [area ID]
- Verify Routes
  - (config-router)#do show ip route
- Disable R2 interface, what will happen to routes on R1
  - All routes are moved to 10.0.3.2 gateway since R2 is down.
  - Also the metrics are higher on the routes now due to the higher cost calculated by OSPF
Routing Protocol Metric and Administrative Distance
- Remove OSPF from all routers
  - (config-router)# no network 10.0.0.0 0.255.255.255 area 0
    - Was what I put in but it should be
      - no router ospf 1
- Will R1 still be able to get to R4
  - Yes RIP is still enabled
- Enable EIGRP on all routers
  - (config)#route eigrp [eigrp group id]
  - (config-router)#no auto
  - (config-router)#network 10.0.0.0 0.255.255.255
Loopback interface
- - (config)#int loopback 1
  - (config-int)#ip address [ip address] [subnet/32]
  - (config-int)#no shut
- Add Loopback to routing table
  - (config-router)# network 192.168.0.0 0.0.0.255
Adjacencies and Passive Interfaces
- Show eigrp neighbors
  - #show ip eigrp neighbors
- Set loopback and interface to a passive interface
  - (config)#route eigrp [eigrp group ID]
  - (config-router)#passive-interface [loopback interface]
  - (config-router)#passive-interface f1/1