Cisco Switch MGMT Default Gateway

[avilt]

On a Cisco switch, if I define MGMT out of band IP address, how do I define the default gateway for it which should remain out of band?

Example: I have a 9300 switch with two vlans 192.168.1.x & 192.168.2.x with vlan IP interfaces and also a default gateway as 192.168.2.254. Now I have MGMT interface 172.16.1.1/24 and I need to define gateway towards another management network. How can I define completely out of band route?

[Reza Sharifi]

Try this:

ip route vrf Mgmt-vrf 0.0.0.0 0.0.0.0 172.16.1.x

x is the ip address of the OOB management network.

Now, you should be able to get to the switch from other subnets.

HTH

[avilt]

Thank you

I will try, the reason I asked is that I have setup SNMP on MGMT and I am unable to get any data on NMS from MGMT interface on my 9000 series switches. Is it a known bug?

[Reza Sharifi]

Is it a known bug?

Not sure, make sure the source is oob interface. see below example:

snmp-server trap-source GigabitEthernet0/0
snmp-server source-interface informs GigabitEthernet0/0

HTH

[johnlloyd_13]

hi,

please post your MGMT and SNMP config.

the C9300 has an OOB VRF Mgmt-vrf on G0/0.

try to use SNMPv2 as a test first and ensure the 9300 MIBs is supported on the NMS.

[avilt]

The above command and snmp ifindex persist on MGMT interface solved my issue.

[Reza Sharifi]

Glad it is all working.

Please rate the post and mark it as solved so, others can benefit from it.

[balaji.bandi]

by default as per I know Cat 9K series switch mgmt interface is in a different VRF.