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

    OpenVPN bridged with LAN VLAN issues

    Scheduled Pinned Locked Moved OpenVPN
    2 Posts 1 Posters 687 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.
    • brunovicB
      brunovic
      last edited by

      I am trying to bridge my OpenVPN L2 TAP (not Tunnel) with my LAN VLAN. That part works fine and my devices are able to get an IP address however when I VPN in I am able to ping the gateway IP address which is assigned to the bridge interface however any devices on the VLAN are not able to ping the gateway. After reviewing the packet logs I notice there are a lot of ARP request going to the pfSense and the pfSense is replying but it seems to me that the switch is not getting those replies on the trunk interface. The set up I have is the pfSense as a vmware appliance with the interface trunked to my Cisco switch with VLANS for LAN, MGMT and Guest users. MGMT and Guest users work fine because they are not linked to a bridge and LAN was working before but the moment I linked it to the bridge and reassigned the IP to the bridge interface my LAN network no longer works. I am stumped and am out of ideas. Can any of you guys help me out with this?

      Illustration01: Here I am able to ping the bridge IP from a device logged into OpenVPN.
      Illustration02: From here I am able to ping a device on the LAN from the Switch sourcing an Switch Virtual Interface.
      Illustration03: However here I cannot ping a device on the LAN from a device connected to the OpenVPN.
      Illustration04: And here no device on the LAN can ping the Bridge IP address.
      illustration01.png
      illustration01.png_thumb
      illustration02.png
      illustration02.png_thumb
      illustration03.png
      illustration03.png_thumb
      illustration04.png
      illustration04.png_thumb

      1 Reply Last reply Reply Quote 0
      • brunovicB
        brunovic
        last edited by

        So after doing some research I have realized that I do not need to assign a bridge to an interface with an IP. I can simply just bridge VPN and LAN with the LAN interface having the IP address. Once I've made those changes everything on the LAN works perfectly fine however I can no longer ping the LAN IP from the OpenVPN client.

        illustration11.png
        illustration11.png_thumb
        illustration12.png
        illustration12.png_thumb

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