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    Cant ping my netgate remotely or webgui into firewall.

    Scheduled Pinned Locked Moved General pfSense Questions
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    • M
      mbock @mbock
      last edited by

      I eliminated the T1 out of the equation.

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        That screams of asymmetrical.. If something in in the 10.210.22/23 is using the SVI in your 2901 as gateway, and return traffic comes back your netgate has a leg in that network so why would it send traffic back to the 2901?

        Also cable "modems' don't do nat But you show it with a 10.x.x.x segment connecting to your netgate? So you mean that is a gateway device, ie modem/router in one?

        And the endpoint of your vpn to the main office is your 2901?

        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
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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          You killed the T1 entirely or just removed it from the diagram?

          That seems like another source of asymmetry otherwise.

          You don't route VLANs. You can route to or from those subnets. Do those subnets exist at the remote location also? The VPN carries layer 2?

          Steve

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          • M
            mbock @johnpoz
            last edited by

            @johnpoz No our vpn router is a 3925 i believe. I dont deal with our office network.
            Yes it is a cable modem/router

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            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Where is the 3925 connected? What subnets is it in?

              Steve

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by

                So where is that in your diagram? Why not just run everything into and out of pfsense? Multiple wan connections - vpn connections?

                Having a hard time understanding what your wanting to do from that diagram to be honest, other than it screams asymmetrical when you have a downstream router routing a segment where pfsense also has a leg in that segment and a transit network into pfsense from that downstream router..

                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

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                • M
                  mbock @stephenw10
                  last edited by

                  @stephenw10 I just unplugged it so we are just on the vpn. Yes our VPN carries Layer2. That exact subnet does not exist at any other of our remote sites ( if thats what you are asking).

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                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    Ok, so when you're pinging pfSense remotely and it's failing what source IP are you using?

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                    • M
                      mbock @johnpoz
                      last edited by

                      @johnpoz We use no Firewalls out in our remote networks. We just use a router, couple switches and use BGP or VPN back to our office networks through MPLS. But my boss wants to do public wifi at one of our remote locations. So i set up a Vlan for public wifi. I have that routing out the cable modem hitting the public internet (not our network) . However he wants to have a firewall between the Public Wifi and our router. If this is not the best way of doing this, please let me know. I have no prior experience with adding firewalls. We want to use the netgate as just a firewall between the public internet and our local router at that remote site.

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                      • M
                        mbock @stephenw10
                        last edited by

                        @stephenw10 I have the LAN port set to a static ip on my VLan 20 . 10.210.22.24 . That fails when trying to ping from my desk. I plugged my laptop into one of the other 3 LAN ports in the netgate, it got a 10.210.22.106 address from dhcp, and i could ping that from my computer remotely, and remote into that laptop.

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by johnpoz

                          @mbock said in Cant ping my netgate remotely or webgui into firewall.:

                          Yes our VPN carries Layer2. That exact subnet does not exist at any other of our remote sites ( if thats what you are asking).

                          Huh?? That makes no sense.. When you use a vpn as layer 2 you normally mean your extending your layer2 from one location into the other location.

                          So you have your offices connected via MPLS - so what is the point of the VPN? Is that into other offices? You run your VPN over the mpls? So this is some sort of public mpls connection with no restrictions on other connections in this mpls cloud where customer A can talk to customer B, etc. ??

                          As to just using router vs firewall - you do understand that with any any rules between segments pfsense becomes for all intensive purposes just a router... While it will maintain states - with any any between segments its really no different than just router.

                          Consolidation of your different network connections into 1 pfsense, or even an HA pair of pfsense would for sure allow for way more functionality all the way around and ease of configuration.. But sure you can use it for just your wifi network, and ad a backup for your current network internet access via a transit network into your current network - but not getting how your vpn comes into play to be honest from that drawing or whre your mpls comes into it, seems you left all of out of the drawing and has what looks like only your cable internet connection going through pfsense to get to your local network via that 2901 you list.

                          If you want help on leveraging pfsense into your network - a drawing of all your connectivity from the location into your wider corp network would be helpful and we can then discuss where and how to best connect pfsense and your public internet into that and isolating your guest wifi, etc.

                          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

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                          • stephenw10S
                            stephenw10 Netgate Administrator
                            last edited by

                            Those devices are all in the same subnet. So assuming they all have the same subnet mask, /23, they should be talking directly.
                            I suspect if you ran a packet capture on the pfSense LAN whilst trying to ping it from 10.210.22.24 you would see it ARPing for that address and not seeing any replies.
                            Unless the client is also unable to ARP for the pfSense IP in which case you would see nothing.

                            Can you ping 10.210.22.24 from pfSense?

                            The VPN should carry ARP if it's really layer 2 but something might be filtering that.

                            We would need to see a packet capture to diagnose further.

                            Steve

                            M 2 Replies Last reply Reply Quote 0
                            • M
                              mbock @johnpoz
                              last edited by

                              @johnpoz Sorry let me correct myself.... We have connections via T1 at some sites, routed through BGP hitting our MPLS and back to our corp office. We also have some sites using broadband connections that we use EZVPN, setting our router as a client with a username and password for authorization.

                              Yes i do understand that the current rules (any any) arn't doing anything. I only set that to try and at least be able to ping the firewall remotely. I do plan on setting rules once i can figure out how to remotely manage the firewall.

                              We have over 300 remote sites all of the private subnets we use for them are extended back to our corp office and can connect to them via those private IPs.

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                              • M
                                mbock @stephenw10
                                last edited by

                                This post is deleted!
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                                • M
                                  mbock @stephenw10
                                  last edited by

                                  @stephenw10 0_1539100362131_packetcapture.txt

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                                  • stephenw10S
                                    stephenw10 Netgate Administrator
                                    last edited by stephenw10

                                    Sorry, I misread your post earlier. I assume 10.210.22.24 is in fact pfSense?

                                    And 10.210.22.1 is the Cisco router?

                                    Where was this capture taken, on the pfSense LAN?

                                    I assume you have the configured as a gateway in pfSense which is why it's pinging it at 0.5s intervals.

                                    What is your test client that's failing here, .209?

                                    20:48:09.945303 IP 10.210.22.209.49486 > 10.210.22.24.443: tcp 1
                                    20:48:09.945339 IP 10.210.22.24.443 > 10.210.22.209.49486: tcp 0
                                    

                                    There are no failing ARP requests shown at least. pfSense is seeing that test traffic (assuming .209) and replying via the correct interface. The actual pcap file would show if it's using the correct MAC there.

                                    Steve

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                                    • M
                                      mbock @stephenw10
                                      last edited by

                                      @stephenw10
                                      .24 is the PFSense, 10.210.22.1 is the cisco router. the .209 is the PC that i had plugged into another lan port on the PFSense so i could go into the web gui to run the packet capture. I pinged remotely from my office PC at 10.160.34.69.

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                                      • stephenw10S
                                        stephenw10 Netgate Administrator
                                        last edited by

                                        Ok so there are no replies leaving the LAN (assuming it was captured on the LAN).

                                        Does pfSense have a route to 10.160.34.X? Via 10.210.22.1?

                                        It's probably sending replies via it's default route otherwise.

                                        Steve

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                                        • M
                                          mbock @stephenw10
                                          last edited by

                                          @stephenw10

                                          There isn't a route on the PFSense to 10.160.34.x , but on my cisco router 10.210.22.1 goes out VPN to our office network which has a route to this network.

                                          Not sure if it helps but i ran a ping to the .209 which is the PC connected to LAN port on PFSense, and i do get replys from my 10.160.34.69 PC Remotly.
                                          0_1539107007783_packetcapture2.txt

                                          Here is also a pic of the routes i currently have on pfsense. 10.1.10.1 is the interface on my comcast modem.
                                          0_1539107058219_routes.png

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                                          • stephenw10S
                                            stephenw10 Netgate Administrator
                                            last edited by

                                            Hmm, that's interesting.
                                            You can ping the client at .209 because it's getting it's IP from the router at .1 so will be using that as it's default gateway and has a route back to 10.160 via that.

                                            Normally I would expect pfSense not to unless you added a static route (we can see only the gateways not the static routes) but here you have set the LAN side gateway as default.

                                            I would check the routing table in pfSense, Diag > Routes, to be sure.

                                            Steve

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