Cisco C9500 management interface unable to communicate with console

[rdanieldrew1]

Hello we currently have a brand new Cisco C9500-48Y4C switch running IS-XE version 17.3.1r(FC2)

We are trying to upgrade the IOS version, so I unbox the switch power it on and console into the switch and set up the Management interface Gig0/0, so I can TFTP (via laptop TFTP Server) the new image (version 17.11.01) over to the switch.

But after the mgmt. interface is set up. I plug in the RJ45 into the Gig0/0 port and then into the console laptop (TFTP Server). I am able toping the interface from the laptop with no issue. BUT I cannot ping the laptop interface. I can ping the mgmt. interface using the “ping vrf Mgmt-vrf 172.16.x.x” on the switch and comes back successful.

I have made sure that all the interface configs look good which it does.

I can confirm that there are no other configs on the switch what-so ever, and the switch is not connected to anything other than the console laptop.

The laptop NIC is configured with an IPv4 address that is within the same address space as the mgmt. interface of the switch.

The config is as follows.

Switch#sho run int g0/0

Building configuration…

Current configuration 114 bytes

!

interface GigabitEthernet0/0

  vrf forwarding Mgmt-vrf

  ip address 172.16.x.x 255.255.0.0

  negotiation auto

end

I am currently at a loss right now as to why this is happening. I have done the same process on a 9300 IOS switch with no issues so I am here scratching my head as to why this is happening.

Please help. Thank you.

[Flavio Miranda]

Hello

 If you are using the console port (USB) ? On the laptop, why dont you use the console port on the switch? 

 Then, configure one interface vlan on the switch, put one port on the vlan and plug the laptop on the  port? Dont you have a SFP for coper cable? 

[rdanieldrew1 · Accepted solution]

So we have figured it out after a while

In order to ping the laptop I needed to use the command

ping vrf Mgmt-vrf <IP of laptop> 

that resulted in a good reply for icmp

Now I needed to TFTP the image to the device from the laptop. 

Kept timing out figured out that I needed to have the command

ip tftp source-interface gig0/0 

After that I was able to transfer the new image to the device and upgrade it.