Using CDP to map a network
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12-08-2022 02:25 PM
I am trying to use Putty to SSH into these items for a school project. I am currently unsure of what I am doing wrong but I keep getting errors that say time out or refused. I am just trying to get a network mapped out on packet tracer. This is what I have started.
Using Putty or another software of your choice, complete the following:
1. SSH to the CIS 228 Edge Router - 50.252.122.235 (External IP)
2. SSH into the CIS 228 Core Switch - 172.16.254.254 (Internal IP)
* If you do not have credentials, please Canvas message me and I will set those up. You can also come to the classroom/lab and setup those yourself.
3. SSH into 172.16.254.253 - Unknown Network
This unknown network has a combination of Cisco 2960-X series switches and Cisco 1921 routers.
You will want to SSH to all that you discover.
4. Commands to investigate:
show cdp
show cdp neighbors detail
show cdp entry *
debug cdp events
Map out the network that you now have access too.
Build a sampling of it in Cisco Packet Tracer. It does not have to work, just show the physical connections and the devices.
Upload it here when completed.
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12-12-2022 05:15 AM
When I looked at the Switch and the Router configuration ssh is not enabled on those devices.
