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

    Snort auto-update whitelist with dynamic WAN gateway?

    Scheduled Pinned Locked Moved IDS/IPS
    3 Posts 2 Posters 767 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.
    • E
      esseebee
      last edited by

      Hello,

      The subject line pretty much sums up my question.  Our WAN gateway is dynamic, so I'm wondering if Snort will automatically update it in the whitelist when it changes.

      Cheers

      1 Reply Last reply Reply Quote 0
      • bmeeksB
        bmeeks
        last edited by

        I recently added new code to both the Snort and Suricata custom blocking plugins so that an interface IP-change monitoring thread is launched when the binary is started.  The thread subscribes to FreeBSD kernel routing table messages.  When a firewall locally-connected interface IP changes, the old IP is removed from the auto-whitelist and the new IP is inserted.  I need to look again, but I don't think I was looking for and pulling out the gateway address changes.  If not, perhaps I can add that option to the new auto-whitelist feature.

        Bill

        1 Reply Last reply Reply Quote 0
        • E
          esseebee
          last edited by

          Wonderful.  Thank you, Bill. That would be very helpful.

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