Source IP and/or VLAN mismatch

[AdminERB]

Hi everybody,

Please advise / help with my MX device.

Event log :

Source IP and/or VLAN mismatch

source_client_ip: 192.168.50.90, source_client_mac: 9C:8E:99:59:E8:E3, source_client_assigned_vlan: 50  last_illegal_ip 192.168.1.10 last_illegal_ip_mapped_vlan_id 1 client_total_illegal_packets 117774 all_total_illegal_packets 139439 last_reported_total 139343

Source IP and/or VLAN mismatch

source_client_ip: 192.168.1.10, source_client_mac: 9C:8E:99:59:E8:E2, source_client_assigned_vlan: 1  last_illegal_ip 192.168.50.90 last_illegal_ip_mapped_vlan_id 50 client_total_illegal_packets 5139 all_total_illegal_packets 139343 last_reported_total 139237

My device (server)uses two network adapters.

1. 9C:8E:99:59:E8:E2 static IP - 192.168.1.10 - acess VLAN1 

2. 9C:8E:99:59:E8:E3 static IP - 192.168.50.90 - acess VLAN50 

The path to the server is from MX (port 3 trunk output all VLAN)  to manageable Cisco switch (input trunk all VLAN) output port 1 (acess VLAN 1 untagged the server network adapters "1")

output port 2 (acess VLAN 50 untagged the server network adapters "2")

The connection is OK, but the error message goes every 30 minutes.

have you encountered this problem?

Thank you very much for any advice. 

[Bruce]

I’d say it looks like you’ve got something mis-configured on the server, or elsewhere in the network. For whatever reason the MX is seeing packets with the 192.168.50.90 IP address on its interface for VLAN 1 - so there is most likely nothing wrong with the MX, it’s letting you know about an error elsewhere in the network.

What OS is the server running? Are any of the network interfaces bridged together, are there any ‘clever’ network functions configured in the network or on the server (e.g. NAT)? Are the VLANs bridged together somewhere in the network?