Meraki MS250 cannot communicate when plugged into a Cisco router
I am falling back from a configuration were I was going to use a Meraki MS250 switch to replace a Cisco router.
There is a Cisco switch plugged into the Cisco router. If the MS250 is plugged into the Cisco switch, the MS250 can communicate to the Meraki cloud and everywhere else without any issue.
If I plug the uplink of the MS250 directly into the Cisco router, no traffic flows.
The configuration of the router does not have any mac address rules, but is not providing a native VLAN on the interface descriptions. I had a case where a MX84 would not pass traffic to a 3rd party switch until the 3rd party switch was reprogrammed to provide a native VLAN. I am wondering if I am facing the same issue.
I have a dump of the configuration of the Cisco router, but I do not have management access to the switch. I thought I would bounce this off the community before asking to change the router configuration.
Re: Meraki MS250 cannot communicate when plugged into a Cisco router
Probably the Native VLAN configuration is not allowing the Meraki Switch to reach out to the internet properly.
I would go and configure the uplink port in the local status page of the Meraki switch as an access port in any VLAN (or the VLAN that is configured in the upstream router if it has one) and provide a static IP address to ensure it is not expecting any trunk negotiation and just send regular traffic as any endpoint.
If that does not work, then you will need to configure both ports the same. Let me know if that works...