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

    I want to connect a second internet provider to my pfsense firewall

    Scheduled Pinned Locked Moved Routing and Multi WAN
    3 Posts 3 Posters 799 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.
    • M Offline
      Mithrondil
      last edited by

      Hi Im  very new to this pfsense firewall thingy, Ive been using it for less then a month.

      1. Is it possible to connect 2 internet providers that use DHCP to the same pfsense firewall if I have the network interfaces for it?

      2. What about a possible DHCP conflict if both providers use DHCP?

      3. Can you dedicate 1 line to upstream and 1 line for downstream?

      1 Reply Last reply Reply Quote 0
      • S Offline
        safetynet
        last edited by

        answers are as follows:

        1:  Yes, you can, even if you don't have sufficient physical NIC's you can VLAN a WAN connection
        2:  No, there won't be an issue with that
        3.  Yes if you really want to, just set a rule on your LAN interface to use a particular gateway for all your outbound traffic.

        1 Reply Last reply Reply Quote 0
        • DerelictD Offline
          Derelict LAYER 8 Netgate
          last edited by

          @safetynet:

          3.  Yes if you really want to, just set a rule on your LAN interface to use a particular gateway for all your outbound traffic.

          But if you're not advertising a specific IP network (almost certainly you're not, or you're running BGP, have an ASN, and wouldn't be asking those questions here, etc) all the return traffic for those outbound connections will come back over the same circuit so you won't have one for upload and one for download.

          Chattanooga, Tennessee, USA
          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
          Do Not Chat For Help! NO_WAN_EGRESS(TM)

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