Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
Hello Fellas, I am having an issue with the DevNet CML sandbox, when trying to connect to my local Ubuntu VM inside VirtualBox. My host computer is a Windows 10. I do have connectivity from the Ubuntu VM to the nodes inside CML. I can ping them just ...
Folks, I am having a hard time trying to figure out why the G0/2 interface on CD1 switch becomes a blocking port, and the F0/21 becomes the DP. Thus making the F0/21the the blocking port on Acc4 switch. In this example, Acc3 is the root bridge, so al...
Folks, After configuring four routers with loopback0 192.168.0.6 - 192.168.0.9 respectively, Router 9 (loopback0 interface as 192.168.0.9 - highest loopback0 IP) is not becoming the DR. The priorities were not set, and was left as default 1. Also, co...
Folks, I am trying to understand when to use the command "area 0 range 10.0.0.0 0.0.255.255" instead of just the "network 10.0.0.0 0.0.255.255 area 0" with the topology shown below. The full commands are shown below, and I am trying to contrast both....
Hello folks, I have an issue with a Cisco 2960 port-security settings. I have enable port-security on the interface f0/3 with shut-down mode, and with a maximum of two MAC addresses. However, when I reach the maximum MAC limit, port-security does not...
Good video. The thing is, the lab on the video is not a Cisco sandbox, it is a local CML lab. I have a local free Cisco CML lab, and i have no problem connecting to the outside world or my virtual environment in VirtualBox. In that setup, you don't e...
I also just tested the NAT adapter in the external connector to see if changes anything, but again, got no reply from 8.8.8.8 or 1.1.1.1. Not sure why Cisco would leave an external connector node available to choose from if you cannot reach the outsi...
I forgot to mention that I tried to ping Google's DNS server (8.8.8.8) from the routers inside the CML sandbox, and got no reply as well. This means, my CML lab is completely isolated. Also, i did try putting my Ubuntu VM in the same network as the C...
I thought it was an aggregated answer instead of a serial answer. Below are my answers. Good exercise. Root is switch A, all ports are FEsA: Thenall ports on Switch A are DPsB>A = RPC>A = RPB>C = Since the link have the same cost to the root, then it...
