1 scrub in on lan_vlan100

[frater]

I suddenly have a lot of firewall entries, but I don't know what's happening….

I have 2 NICs

On NIC dc0 I have placed vlan 10, 11 & 13 which I use for WAN-connections
On NIC re0 I have LAN vlans  100, 101, 102, 103, 104, 105, 106, 200 & 3

Now I'm all of a sudden getting firewall blocks for VLAN 104
On that VLAN is a Linksys router attached

What is happening and can't I just let this traffic pass??
Why does it say vlan100 when that traffic is coming from vlan104?

[jimp]

Those packets are TCP FIN+ACK packets, so it's the last packet of a closing connection.

Most often, it's this:

http://doc.pfsense.org/index.php/Logs_show_%22blocked%22_for_traffic_from_a_legitimate_connection,_why%3F