Source IP and/or VLAN mismatch

Kenneth_rf
Here to help

Source IP and/or VLAN mismatch

Hello,

 

I have tried looking for information on this type of event since it is giving me problems lately.

 

 

Kenneth_rf_0-1625738440491.png

Could someone explain to me what it refers to and why is there this error?

 

The solution that I apply is to assign a fixed IP and then release it. But I would like to understand the problem itself.

 

Thanks,

2 Replies 2
CptnCrnch
Kind of a big deal
Kind of a big deal

Well, I'd guess there could be an issue with your DHCP server. The IP address from your screenshot is a so-called "APIPA" address that's being used when a client doesn't have other ways to obtain a "real" IP address.

 

As soon as this IP hits your MX, it will take a look at its routing table and doesn't find that IP address range (or "thinks" this is located within your default route. Because of https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/IP_Source_Address_Spoofing_Protecti... it will prevent communication.

Iridium79
Getting noticed

By any chance do you have bonjour forwarding on both access point and Mx, if yes remove it from the access point.   I had the same issue.

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