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Snmp from host and not Pfsense from external ip address

Scheduled Pinned Locked Moved SNMP
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  • D
    derreckbercier
    last edited by Jul 9, 2018, 8:34 PM

    I work for a tv station, and our primary encoder is receiving data from a source out of state. I'm coming form a soicwall firewall and all i had to do was foward port 161 to the paticular device and viola no problems. I've switched over to pfsense and opened the same exact ports as the previous firewall and all i get are timeout messages and i don't know how to or if i even need to port foward port 161 to my device or do have to setup some type of firewall rule so that when i get the request from my man wan that it talks just to that device. Any help is appreciated.

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    • D
      Derelict LAYER 8 Netgate
      last edited by Jul 9, 2018, 9:26 PM

      A port forward is a port forward.

      You need a firewall rule on WAN that passes the traffic to the inside address and port.

      That is generated automatically by default.

      https://www.netgate.com/docs/pfsense/nat/forwarding-ports-with-pfsense.html

      https://www.netgate.com/docs/pfsense/nat/port-forward-troubleshooting.html

      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)

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      • D
        derreckbercier
        last edited by Jul 9, 2018, 9:35 PM

        So let me get this straight, I don't need to port foward port 161 to the specific device?

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        • D
          Derelict LAYER 8 Netgate
          last edited by Jul 9, 2018, 9:38 PM

          Yes. You need a port forward. And a firewall rule. It's all in those links.

          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)

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          • D
            derreckbercier
            last edited by Jul 9, 2018, 9:47 PM

            i've tried it. I've port foward snmp port to the internal device. I've told pfsense that all traffic coming from the specific external host ipaddress that comes in on my main wan that is port 161 to direct to my internal device. I was just looking for some help in my configuration if i had missed something or did something incorrectly. thanks for all your help and time.

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            • D
              derreckbercier
              last edited by Jul 9, 2018, 10:08 PM

              Thank you again, I do belive with your help i finally got this working!! I am able to snmpwalk from outside of my network! thank you very much.

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