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

    Disable NAT between seperate LAN subnets

    Scheduled Pinned Locked Moved NAT
    2 Posts 2 Posters 805 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.
    • J
      jpinder70
      last edited by

      Hi..

      I have a pfsense box with a LAN (LAN1) and 5 VLANS that's running on a separate NIC (LAN2). I have a phone PBX running on the VLANS and the PBX running on the VLANS network (LAN2) i'm having a strange issue when phones registeres from the VLAN network to the none VLAN LAN it shoes up as UDP-NAT

      How can I disable NAT between two separate LAN interfaces?

      Thanks

      1 Reply Last reply Reply Quote 0
      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        NAT is not enabled between LAN interfaces in automatic mode - did you change to manual and create some NAT rule?  Did you put a gateway on one of your LAN interfaces – doing so would make pfsense think its a WAN interface and create nat rules for it, etc.

        There should never be a gateway on a LAN interface!!  You have to go out of your why to even do it ;)

        Out of the box you can have as many lan interfaces as you want, vlans, physical whatever and there is NO nat done between them -- only to the wan interface is nat done out of the box.

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 24.11 | Lab VMs 2.8, 24.11

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