Configure Default route for MGMT0?

Hello, I recently received x2 Onyx 2410M switches for a project I am working on. I am a bit confused on how to define a route for the MGMT0 interface only. Specifically I want a default route for my general vlan interfaces then have the MGMT0 interface use a separate default route that goes into my OOBM network.

This page references the command “ip default-gateway” when int he MGMT0 configuration mode. That command is not present.

https://docs.mellanox.com/display/ONYXv381118/Management%20Interface%20Commands

Can someone please explain how MGMT0 default route works?

Hi Kevin,

If the default route on the mgmt0 interface is currently set to a next hop that is being provided by DHCP, the solution would be to disable DHCP on the mgmt0 interface, configure a static IP on the mgmt0 interface, and then configure a new static route with the next-hop IP for mgmt0. You can then use the ip default-gateway command for the default route going out your vlan interface:

no interface mgmt0 DHCP

interface mgmt0 ip address 192.168.10.10

ip default-gateway 0.0.0.0 0.0.0.0 10.130.55.10

ip route 192.168.0.0 255.255.0.0 mgmt0

After making the above changes, the route table should display entries similar to the following:

[mlag-vip-domain: master] (config) # show ip route

Flags:

F: Failed to install in H/W

B: BFD protected (static route)

i: BFD session initializing (static route)

x: protecting BFD session failed (static route)

c: consistent hashing

p: partial programming in H/W

VRF Name default:

192.168.0.0 255.255.255.0 0.0.0.0 mgmt0 direct 0/0

default 0.0.0.0 10.130.55.10 vlan55 static 1/1

Thanks/regards,

Kevin