Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    1 scrub in on lan_vlan100

    Scheduled Pinned Locked Moved Routing and Multi WAN
    2 Posts 2 Posters 1.4k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • F
      frater
      last edited by

      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?
      pfsense-blocking.PNG
      pfsense-blocking.PNG_thumb

      1 Reply Last reply Reply Quote 0
      • jimpJ
        jimp Rebel Alliance Developer Netgate
        last edited by

        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

        Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

        Need help fast? Netgate Global Support!

        Do not Chat/PM for help!

        1 Reply Last reply Reply Quote 0
        • First post
          Last post
        Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.