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    pfSense sends packet as 0.0.0.0

    Scheduled Pinned Locked Moved General pfSense Questions
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    • johnpozJ Offline
      johnpoz LAYER 8 Global Moderator
      last edited by johnpoz

      @Topogigio said in pfSense sends packet as 0.0.0.0:

      but is seems having trouble connecting to Internet.

      In what manner? Are you saying it can not check for updates? Unbound is not working... What is not working.. Other than when you do a manual ping, you say you see source of all zeros? When you don't pick an interface?

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      • T Offline
        Topogigio @johnpoz
        last edited by

        @johnpoz I noticed the problem because it was unable to populate the available package list..
        So I noticed that it was unable to resolve DNS, then that was unable to ping, and so on.
        After the outpoing NAT rule I added as workaround all started to work.

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        • johnpozJ Offline
          johnpoz LAYER 8 Global Moderator
          last edited by johnpoz

          so when you remove that rule, it doesn't work anymore? Or maybe unbound just had an issue? If you can not resolve.. Did you see dns traffic going out with all zeros as source?

          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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          • jimpJ Offline
            jimp Rebel Alliance Developer Netgate
            last edited by

            1. You should never have an outbound NAT rule with a source of any -- fix that before anything else. You are in hybrid mode so it's unnecessary anyhow.
            2. Let's see the pcap, or a screenshot of it loaded in wireshark
            3. What shows up in Diagnostics > States for the traffic that is sourced as 0.0.0.0?

            The last time this happened there was something unusual on the user's setup, though I can't remember what it was. I want to say maybe it was an IPv6-only IPsec VTI instance but I'm probably misremembering.

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            • T Offline
              Topogigio @johnpoz
              last edited by

              @johnpoz If I remove that rule, it does not work anymore. If I remove that rule I see traffic (ICMP request for example) from pfSense with 0.0.0.0 as source. Only traffic from pfSense itself, not traffic from other hosts routed through it.

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              • T Offline
                Topogigio @jimp
                last edited by

                @jimp

                • I know it. I added it as workaround, without that pfSense is unable to contact the world to resolve DNS or download updates.
                • sorry, a pcap from where? I have access to pfSense and nothing else on the external side.

                From the pfSense:

                PING 8.8.8.8 (8.8.8.8): 56 data bytes

                --- 8.8.8.8 ping statistics ---
                3 packets transmitted, 0 packets received, 100.0% packet loss

                15:37:32.819751 IP 0.0.0.0 > 8.8.8.8: ICMP echo request, id 32851, seq 0, length 64
                15:37:33.830224 IP 0.0.0.0 > 8.8.8.8: ICMP echo request, id 32851, seq 1, length 64
                15:37:34.840837 IP 0.0.0.0 > 8.8.8.8: ICMP echo request, id 32851, seq 2, length 64

                states: I cannot find anything related to 8.8.8.8

                I have IPSEC VTI interfaces, but I'm sure that the problem has started AFTER I configured them (because I required OSPF so I installed the package after the VPNs were connected. However can be something there, I agree. But I cannot understand why and what..

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                • stephenw10S Offline
                  stephenw10 Netgate Administrator
                  last edited by

                  No states shown for 0.0.0.0 either?

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                  • T Offline
                    Topogigio @stephenw10
                    last edited by

                    @stephenw10 sorry, found:

                    WAN icmp 0.0.0.0:25462 -> 8.8.8.8:25462 0:0 3 / 0 252 B / 0 B

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                    • jimpJ Offline
                      jimp Rebel Alliance Developer Netgate
                      last edited by

                      Show the entire output of ifconfig -a and netstat -rn.

                      Something is broken in your setup and it's not NAT. The NAT is hiding the real issue.

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                      • T Offline
                        Topogigio @jimp
                        last edited by

                        @jimp Routing tables

                        Internet:
                        Destination Gateway Flags Netif Expire
                        default X.X.X.254 UGS hn0
                        10.0.0.0/24 10.77.36.1 UG1 ipsec100
                        10.0.1.0/24 10.77.36.1 UG1 ipsec100
                        10.0.2.0/24 10.77.36.1 UG1 ipsec100
                        10.20.0.0/22 10.77.36.1 UG1 ipsec100
                        10.40.0.0/25 10.77.36.1 UG1 ipsec100
                        10.40.0.0/24 10.77.36.1 UG1 ipsec100
                        10.40.0.128/25 10.77.36.1 UG1 ipsec100
                        10.77.32.0/26 link#6 U hn1
                        10.77.32.1 link#6 UHS lo0
                        10.77.32.64/26 link#7 U hn2
                        10.77.32.65 link#7 UHS lo0
                        10.77.36.1 link#8 UH ipsec100
                        10.77.36.2 link#8 UHS lo0
                        10.77.36.5 link#9 UH ipsec200
                        10.77.36.6 link#9 UHS lo0
                        X.X.X.104 link#5 UHS lo0
                        X.X.X.104/32 link#5 U hn0
                        X.X.X.105 link#5 UHS lo0
                        X.X.X.105/32 link#5 U hn0
                        X.X.X.106 link#5 UHS lo0
                        X.X.X.106/32 link#5 U hn0
                        X.X.X.40/30 10.77.36.1 UG1 ipsec100
                        X.X.X.84/30 10.77.36.1 UG1 ipsec100
                        X.X.X.246 X.X.X.254 UGHS hn0
                        X.X.X.38 X.X.X.254 UGHS hn0
                        127.0.0.1 link#1 UH lo0
                        X.X.X.254 02:00:00:5f:28:ad UHS hn0
                        172.16.0.0/22 10.77.36.1 UG1 ipsec100
                        172.19.0.0/16 10.77.36.1 UG1 ipsec100
                        172.19.16.64/26 10.77.36.1 UG1 ipsec100
                        172.19.32.0/20 10.77.36.1 UG1 ipsec100
                        172.26.0.0/16 10.77.36.1 UG1 ipsec100
                        172.27.0.0/16 10.77.36.1 UG1 ipsec100
                        172.27.64.0/19 10.77.36.1 UG1 ipsec100
                        172.29.0.0/16 10.77.36.1 UG1 ipsec100
                        172.30.94.0/26 10.77.36.1 UG1 ipsec100
                        172.30.94.64/26 10.77.36.1 UG1 ipsec100
                        172.30.94.128/26 10.77.36.1 UG1 ipsec100
                        172.30.96.0/24 10.77.36.1 UG1 ipsec100
                        172.30.98.0/24 10.77.36.1 UGS ipsec100
                        172.30.99.0/24 10.77.36.1 UG1 ipsec100
                        172.30.252.0/24 10.77.36.1 UG1 ipsec100
                        172.30.254.1/32 10.77.36.1 UG1 ipsec100
                        172.30.254.2/32 10.77.36.1 UG1 ipsec100
                        172.30.254.11/32 10.77.36.1 UG1 ipsec100
                        172.30.254.12/32 10.77.36.1 UG1 ipsec100
                        172.30.254.13/32 10.77.36.1 UG1 ipsec100
                        172.30.254.14/32 10.77.36.1 UG1 ipsec100
                        172.30.254.15/32 10.77.36.1 UG1 ipsec100
                        172.30.254.16/32 10.77.36.1 UG1 ipsec100
                        172.30.254.28/32 10.77.36.1 UG1 ipsec100
                        172.30.254.29/32 10.77.36.1 UG1 ipsec100
                        172.30.254.34/32 10.77.36.1 UG1 ipsec100
                        172.30.254.35/32 10.77.36.1 UG1 ipsec100
                        172.30.254.46/32 10.77.36.1 UG1 ipsec100
                        172.30.254.47/32 10.77.36.1 UG1 ipsec100
                        172.30.254.53/32 10.77.36.1 UG1 ipsec100
                        172.30.254.54/32 10.77.36.1 UG1 ipsec100
                        172.30.254.55/32 10.77.36.1 UG1 ipsec100
                        172.30.254.56/32 10.77.36.1 UG1 ipsec100
                        172.30.254.59/32 10.77.36.1 UG1 ipsec100
                        172.30.254.60/32 10.77.36.1 UG1 ipsec100
                        172.30.254.63/32 10.77.36.1 UG1 ipsec100
                        172.30.254.64/32 10.77.36.1 UG1 ipsec100
                        172.30.254.71/32 10.77.36.1 UG1 ipsec100
                        172.30.254.72/32 10.77.36.1 UG1 ipsec100
                        172.30.254.73/32 10.77.36.1 UG1 ipsec100
                        172.30.254.74/32 10.77.36.1 UG1 ipsec100
                        172.30.254.76/30 10.77.36.1 UG1 ipsec100
                        172.30.254.80/30 10.77.36.1 UG1 ipsec100
                        172.160.10.0/24 10.77.36.1 UG1 ipsec100
                        192.168.0.0/24 10.77.36.1 UG1 ipsec100
                        192.168.1.0/24 10.77.36.1 UG1 ipsec100
                        192.168.2.0/24 10.77.36.1 UG1 ipsec100
                        192.168.19.0/24 10.77.36.1 UG1 ipsec100
                        192.168.21.0/24 10.77.36.1 UG1 ipsec100
                        192.168.22.0/24 10.77.36.1 UG1 ipsec100
                        192.168.24.0/24 10.77.36.1 UG1 ipsec100
                        192.168.29.0/24 10.77.36.1 UG1 ipsec100
                        192.168.32.0/24 10.77.36.1 UG1 ipsec100
                        192.168.33.0/24 10.77.36.1 UG1 ipsec100
                        192.168.34.0/24 10.77.36.1 UG1 ipsec100
                        192.168.41.0/24 10.77.36.1 UG1 ipsec100
                        192.168.47.0/24 10.77.36.1 UG1 ipsec100
                        192.168.51.0/24 10.77.36.1 UG1 ipsec100
                        192.168.52.0/24 10.77.36.1 UG1 ipsec100
                        192.168.96.0/24 10.77.36.1 UG1 ipsec100
                        192.168.97.0/26 10.77.36.1 UG1 ipsec100
                        192.168.97.64/26 10.77.36.1 UG1 ipsec100
                        192.168.100.0/24 10.77.36.1 UG1 ipsec100
                        192.168.103.192/26 10.77.36.1 UG1 ipsec100
                        192.168.190.0/24 10.77.36.1 UG1 ipsec100
                        195.43.163.9/32 10.77.36.1 UG1 ipsec100
                        195.43.178.150/32 10.77.36.1 UG1 ipsec100

                        Internet6:
                        Destination Gateway Flags Netif Expire
                        ::1 link#1 UH lo0
                        fe80::%lo0/64 link#1 U lo0
                        fe80::1%lo0 link#1 UHS lo0
                        fe80::%hn0/64 link#5 U hn0
                        fe80::ff:fe5f:28ad%hn0 link#5 UHS lo0
                        fe80::%hn1/64 link#6 U hn1
                        fe80::215:5dff:fe5a:1601%hn1 link#6 UHS lo0
                        fe80::%hn2/64 link#7 U hn2
                        fe80::215:5dff:fe5a:1602%hn2 link#7 UHS lo0
                        fe80::%ipsec1000/64 link#8 U ipsec100
                        fe80::215:5dff:fe5a:1601%ipsec1000 link#8 UHS lo0
                        fe80::%ipsec2000/64 link#9 U ipsec200
                        fe80::215:5dff:fe5a:1601%ipsec2000 link#9 UHS lo0

                        Shell Output - ifconfig -a

                        lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
                        options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
                        inet6 ::1 prefixlen 128
                        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
                        inet 127.0.0.1 netmask 0xff000000
                        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                        groups: lo
                        enc0: flags=41<UP,RUNNING> metric 0 mtu 1536
                        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                        groups: enc
                        pfsync0: flags=0<> metric 0 mtu 1500
                        groups: pfsync
                        pflog0: flags=100<PROMISC> metric 0 mtu 33160
                        groups: pflog
                        hn0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
                        options=48001b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,LINKSTATE,TXCSUM_IPV6>
                        ether 02:00:00:5f:28:ad
                        hwaddr 02:00:00:5f:28:ad
                        inet6 fe80::ff:fe5f:28ad%hn0 prefixlen 64 scopeid 0x5
                        inet X.X.X.104 netmask 0xffffffff broadcast X.X.X.104
                        inet X.X.X.105 netmask 0xffffffff broadcast X.X.X.105
                        inet X.X.X.106 netmask 0xffffffff broadcast X.X.X.106
                        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                        media: Ethernet autoselect (10Gbase-T <full-duplex>)
                        status: active
                        hn1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
                        options=48001b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,LINKSTATE,TXCSUM_IPV6>
                        ether 00:15:5d:5a:16:01
                        hwaddr 00:15:5d:5a:16:01
                        inet6 fe80::215:5dff:fe5a:1601%hn1 prefixlen 64 scopeid 0x6
                        inet 10.77.32.1 netmask 0xffffffc0 broadcast 10.77.32.63
                        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                        media: Ethernet autoselect (10Gbase-T <full-duplex>)
                        status: active
                        hn2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
                        options=48001b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,LINKSTATE,TXCSUM_IPV6>
                        ether 00:15:5d:5a:16:02
                        hwaddr 00:15:5d:5a:16:02
                        inet6 fe80::215:5dff:fe5a:1602%hn2 prefixlen 64 scopeid 0x7
                        inet 10.77.32.65 netmask 0xffffffc0 broadcast 10.77.32.127
                        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                        media: Ethernet autoselect (10Gbase-T <full-duplex>)
                        status: active
                        ipsec1000: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1422
                        tunnel inet X.X.X.104 --> X.X.X.246
                        inet6 fe80::215:5dff:fe5a:1601%ipsec1000 prefixlen 64 scopeid 0x8
                        inet 10.77.36.2 --> 10.77.36.1 netmask 0xfffffffc
                        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                        reqid: 1000
                        groups: ipsec
                        ipsec2000: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1438
                        tunnel inet X.X.X.104 --> X.X.X.38
                        inet6 fe80::215:5dff:fe5a:1601%ipsec2000 prefixlen 64 scopeid 0x9
                        inet 10.77.36.6 --> 10.77.36.5 netmask 0xfffffffc
                        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                        reqid: 2000
                        groups: ipsec

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                        • Z Offline
                          Ziomalski
                          last edited by

                          Were you able to resolve the issue? I ask because I have a similar problem but specific to a VPN VTI. At my home, I setup an IPsec VTI connection to a fresh EdgeRouter. My Local/Remote subnet is 192.168.51.1/30. However, I noticed the P2 negotiates 0.0.0.0/0 for local/remote.

                          With Static routes setup, my PC can ping the router and connect to anything on the internet. Exactly as I want and expect. However, pfSense cannot ping. Packet capture shows exactly what you have as 0.0.0.0 source and therefor fails.

                          This wouldn't be a huge problem except that Gateway-Monitor is broken because it can't ping. Now I realize that without GW-Mon, Firewall rules that have a specified GW get skipped. Even when GW-Mon option is disabled and is supposed to be treated as "always online".

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                          • jimpJ Offline
                            jimp Rebel Alliance Developer Netgate @Ziomalski
                            last edited by

                            @Ziomalski said in pfSense sends packet as 0.0.0.0:

                            I noticed the P2 negotiates 0.0.0.0/0 for local/remote.

                            That is normal for VTI and not related to this isssue.

                            Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

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                            Do not Chat/PM for help!

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