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

    (SOLVED) Can't have access to Google's 172.217.0.0 addresses

    Scheduled Pinned Locked Moved Firewalling
    34 Posts 4 Posters 4.4k Views 4 Watching
    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.
    • T Offline
      torisevt
      last edited by torisevt

      Here's the problem.
      We have pfSense 2.4.4-RELEASE-p3.
      WAN(dhcp) and LAN(192.168.100.0/24).
      We have few rules on the firewall:

      On WAN, allow access from our other site and allow maintenance.
      Block Not IANA and IPv6.

      On LAN, allow connection to other site subnets and allow LAN to any rule.
      Block IPv6.

      These rules we have and still I can't access google site or sometimes not even ping.
      From firewall I can ping these sites, but not on the PC.
      The problematic addresses seems to be the 172.217.0.0/16 net.

      How I get the Google sites to work?
      Thank You

      GertjanG 1 Reply Last reply Reply Quote 0
      • GertjanG Offline
        Gertjan @torisevt
        last edited by Gertjan

        @torisevt said in Can't have access to Google's 172.217.0.0 addresses:

        WAN(dhcp) and LAN(192.168.1.0/24).

        What do you mean ?
        Both WAN and LAN on the 192.168.1.0/24 network ?

        @torisevt said in Can't have access to Google's 172.217.0.0 addresses:

        172.217.0.0

        Keep in mind : hosts on the Internet have no obligation to reply to a ping.

        edit : I just tried (one) 172.217.0.1 : it replies to ICMP.

        No "help me" PM's please. Use the forum, the community will thank you.
        Edit : and where are the logs ??

        1 Reply Last reply Reply Quote 0
        • T Offline
          torisevt
          last edited by

          WAN get it's IP from ISP DHCP.
          And LAN uses 192.168.1.0/24 network.

          Sorry if problematic to read

          1 Reply Last reply Reply Quote 0
          • T Offline
            torisevt
            last edited by

            C:\Users\administrator>ping www.google.com

            Ping-isäntä: www.google.com [172.217.21.164] 32 tavua tietoja:
            Pyyntö aikakatkaistiin. (Time out)
            Pyyntö aikakatkaistiin.
            Pyyntö aikakatkaistiin.
            Pyyntö aikakatkaistiin.

            Ping-tilastot 172.217.21.164:
            Packages: Sent = 4, Received = 0, Loss = 4
            (100% loss),

            1 Reply Last reply Reply Quote 0
            • kiokomanK Offline
              kiokoman LAYER 8
              last edited by

              pls provide screenshot of rules WAN / LAN of your pfsense

              ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
              Please do not use chat/PM to ask for help
              we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
              Don't forget to Upvote with the 👍 button for any post you find to be helpful.

              1 Reply Last reply Reply Quote 0
              • T Offline
                torisevt
                last edited by

                WAN rules.png LAN rules.png

                1 Reply Last reply Reply Quote 0
                • johnpozJ Offline
                  johnpoz LAYER 8 Global Moderator
                  last edited by johnpoz

                  Do a traceroute to www.google.com. Are you getting past pfsense? Are you using IPS or vpn service?

                  Do you have any rule rules in floating?

                  Your allow subnet rule? So you have downstream networks of your lan?

                  You do understand that allow rule to 172.19/16 is pointless right, since you have any any rule.. Allow subnet rules since your any any rule source is any... vs say lan net.

                  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

                  T 1 Reply Last reply Reply Quote 0
                  • T Offline
                    torisevt @johnpoz
                    last edited by torisevt

                    @johnpoz
                    No rules in floating
                    Subnets are at the other site.
                    I try to fix the previous guys problems.
                    I had to change to gmail.com, because www.google.com IP changed to 216.58.207.228 which works fine.

                    C:\Users\administrator>tracert gmail.com
                    
                    seurataan reitti isäntään gmail.com [172.217.20.37]
                    enintään 30 siirräntävälillä:
                    
                      1    <1 ms    <1 ms    <1 ms  192.168.100.1
                      2     *        *        *     Pyyntö aikakatkaistiin. (time out)
                      3     *        *        *     Pyyntö aikakatkaistiin.
                      4     *        *        *     Pyyntö aikakatkaistiin.
                      5     *        *        *     Pyyntö aikakatkaistiin.
                      6     *        *        *     Pyyntö aikakatkaistiin.
                      7     *        *        *     Pyyntö aikakatkaistiin.
                      8     *        *        *     Pyyntö aikakatkaistiin.
                      9     *        *        *     Pyyntö aikakatkaistiin.
                     10     *        *        *     Pyyntö aikakatkaistiin.
                     11     *        *        *     Pyyntö aikakatkaistiin.
                     12     *        *        *     Pyyntö aikakatkaistiin.
                     13     *        *        *     Pyyntö aikakatkaistiin.
                     14     *        *        *     Pyyntö aikakatkaistiin.
                     15     *        *        *     Pyyntö aikakatkaistiin.
                     16     *        *        *     Pyyntö aikakatkaistiin.
                     17     *        *        *     Pyyntö aikakatkaistiin.
                     18     *        *        *     Pyyntö aikakatkaistiin.
                     19     *        *        *     Pyyntö aikakatkaistiin.
                     20     *        *        *     Pyyntö aikakatkaistiin.
                     21     *        *        *     Pyyntö aikakatkaistiin.
                     22     *        *        *     Pyyntö aikakatkaistiin.
                    
                    1 Reply Last reply Reply Quote 0
                    • johnpozJ Offline
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      And what is this 192.168.100? You stated your pfsense lan is 192.168.1

                      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

                      T 1 Reply Last reply Reply Quote 0
                      • T Offline
                        torisevt @johnpoz
                        last edited by

                        @johnpoz
                        Fingers type before I think.
                        We have 192.168.100.0 network at the site.

                        1 Reply Last reply Reply Quote 0
                        • johnpozJ Offline
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          Ok...So pfsense is 192.168.100.1

                          What does the routing table look like on pfsense? Do a traceroute from pfsense for that 172 IP.

                          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

                          T 1 Reply Last reply Reply Quote 0
                          • T Offline
                            torisevt @johnpoz
                            last edited by

                            @johnpoz
                            Traceroute
                            1 * * *
                            2 62.78.124.34 9.949 ms 11.144 ms 9.942 ms
                            3 62.78.107.148 18.192 ms 9.792 ms 9.891 ms
                            4 62.78.107.202 14.443 ms 10.692 ms 9.342 ms
                            5 * * *
                            6 62.78.107.194 17.179 ms 13.994 ms 16.244 ms
                            7 62.78.104.85 28.543 ms
                            62.78.108.37 137.688 ms 14.744 ms
                            8 * 72.14.211.94 13.255 ms *
                            9 * 108.170.254.49 18.219 ms *
                            10 209.85.246.26 17.006 ms
                            72.14.236.4 17.444 ms
                            108.170.232.35 14.894 ms
                            11 172.217.20.37 18.042 ms
                            108.170.232.35 22.542 ms
                            172.217.20.37 15.499 ms

                            ip4 routes.png

                            1 Reply Last reply Reply Quote 0
                            • GertjanG Offline
                              Gertjan
                              last edited by

                              For me

                              Microsoft Windows [version 6.1.7601]
                              Copyright (c) 2009 Microsoft Corporation. Tous droits réservés.
                              
                              C:\Users\Réception-Gauche>ping 172.217.21.164
                              
                              Envoi d'une requête 'Ping'  172.217.21.164 avec 32 octets de données :
                              Réponse de 172.217.21.164 : octets=32 temps=57 ms TTL=45
                              Réponse de 172.217.21.164 : octets=32 temps=57 ms TTL=45
                              Réponse de 172.217.21.164 : octets=32 temps=56 ms TTL=45
                              Réponse de 172.217.21.164 : octets=32 temps=56 ms TTL=45
                              
                              Statistiques Ping pour 172.217.21.164:
                                  Paquets : envoyés = 4, reçus = 4, perdus = 0 (perte 0%),
                              Durée approximative des boucles en millisecondes :
                                  Minimum = 56ms, Maximum = 57ms, Moyenne = 56ms
                              

                              "Your mileage may vary ...."

                              All this means that "172.217.21.164" want to reply to me (my WAN IP).
                              Not a big issue if ICMP won't come back.

                              No "help me" PM's please. Use the forum, the community will thank you.
                              Edit : and where are the logs ??

                              T 1 Reply Last reply Reply Quote 0
                              • T Offline
                                torisevt @Gertjan
                                last edited by torisevt

                                @Gertjan
                                Me too but not on the other site

                                U:\>ping 172.217.21.164
                                
                                Ping-isäntä: 172.217.21.164 32 tavua tietoja:
                                Vastaus isännältä 172.217.21.164: tavuja=32 aika=7 ms TTL=57
                                Vastaus isännältä 172.217.21.164: tavuja=32 aika=7 ms TTL=57
                                Vastaus isännältä 172.217.21.164: tavuja=32 aika=7 ms TTL=57
                                Vastaus isännältä 172.217.21.164: tavuja=32 aika=7 ms TTL=57
                                
                                Ping-tilastot 172.217.21.164:
                                    Paketit: Lähetetty = 4, Vastaanotettu = 4, Kadonnut = 0
                                             (0% hävikki),
                                Arvioitu kiertoaika millisekunteina:
                                    Pienin = 7 ms, Suurin = 7 ms, Keskiarvo = 7 ms
                                
                                GertjanG 1 Reply Last reply Reply Quote 0
                                • johnpozJ Offline
                                  johnpoz LAYER 8 Global Moderator
                                  last edited by

                                  @torisevt said in Can't have access to Google's 172.217.0.0 addresses:

                                  7 62.78.104.85 28.543 ms
                                  62.78.108.37 137.688 ms 14.744 ms

                                  That trace looks odd, are you getting back multiple IPs on the same hop?

                                  From your trace looks like your problem is upstream of pfsense.. To prove this too yourself - just sniff on wan of pfsense when you ping that IP... Do you see pfsense send the ping request with its public IP as source.. If you do not get an answer that is on your isp or upstream..

                                  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

                                  1 Reply Last reply Reply Quote 0
                                  • GertjanG Offline
                                    Gertjan @torisevt
                                    last edited by Gertjan

                                    So, here a ping to "172.217.21.164" replies :
                                    @torisevt said in Can't have access to Google's 172.217.0.0 addresses:

                                    U:>ping 172.217.21.164

                                    Ping-isäntä: 172.217.21.164 32 tavua tietoja:
                                    Vastaus isännältä 172.217.21.164: tavuja=32 aika=7 ms TTL=57

                                    Here it doesn't :

                                    @torisevt said in Can't have access to Google's 172.217.0.0 addresses:
                                    Ping-isäntä: www.google.com [172.217.21.164] 32 tavua tietoja:
                                    Pyyntö aikakatkaistiin. (Time out)

                                    Is that the question : it doesn't work all the times ?

                                    No "help me" PM's please. Use the forum, the community will thank you.
                                    Edit : and where are the logs ??

                                    T 1 Reply Last reply Reply Quote 0
                                    • T Offline
                                      torisevt @Gertjan
                                      last edited by

                                      @Gertjan
                                      It doesn't work when Google change it's sites IP addresses to 172.217.0.0 net

                                      1 Reply Last reply Reply Quote 0
                                      • johnpozJ Offline
                                        johnpoz LAYER 8 Global Moderator
                                        last edited by

                                        He has 2 sites.. Only 1 site is unable to ping that netblock.

                                        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

                                        1 Reply Last reply Reply Quote 1
                                        • GertjanG Offline
                                          Gertjan
                                          last edited by

                                          The site with no result (no ICMP returned) uses an upstream router with differnet settings ?
                                          Another ISP ?

                                          Also : "Google" uses firewalls. When some networks (read : ISP clients) ping to much, it would not surprises me that Google throttles ICMP a bit for that network. It's just a free service ;)

                                          No "help me" PM's please. Use the forum, the community will thank you.
                                          Edit : and where are the logs ??

                                          1 Reply Last reply Reply Quote 0
                                          • T Offline
                                            torisevt
                                            last edited by

                                            There is a cable modem connected to pfsense that is connected to LAN switch.
                                            No another ISP, unless IPsec VPN between sites?

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