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    Many blocked IP from the same person?

    Scheduled Pinned Locked Moved General pfSense Questions
    30 Posts 8 Posters 4.3k Views
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    • K Offline
      killmasta93
      last edited by

      thanks for the reply firewalluser, well my DHCP is handle by my windows server and on pfSense i have DHCP off. Here is my setup see pic

      Thank you

      Drawing2.jpg
      Drawing2.jpg_thumb

      Tutorials:

      https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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      • F Offline
        firewalluser
        last edited by

        Yeah but its your WAN interface on pfsense thats blocking those packets so its something upstream.

        It might be how you have configured your static ip or how your isp have their system working. Having worked for big companies listed on the stock markets in the past, never under estimate a cock up on their part, most people would be surprised at how they spin things, even the big IT names get hacked often but dont disclose all the time even perhaps because they dont know or care.

        Capitalism, currently The World's best Entertainment Control System and YOU cant buy it! But you can buy this, or some of this or some of these

        Asch Conformity, mainly the blind leading the blind.

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        • K Offline
          killmasta93
          last edited by

          hmmm.. well atleast its blocking  ;D so do you recommend to call my lSP?

          edit: i was reading up on this https://forum.pfsense.org/index.php?topic=40852.15
          seems like something of the lSP I try to call to see what they say or ill just unlog that IP because its flooding my ELK server  :-[

          Thank you

          Tutorials:

          https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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          • KOMK Offline
            KOM
            last edited by

            so do you recommend to call my lSP?

            I wouldn't bother.  Your firewall is doing its job.

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            • F Offline
              firewalluser
              last edited by

              I'd check your end first, make sure your wan connection is configured properly as per their instructions as different ISP have different ways of allocating a fixed ip to you and then give them a call to ask. Theres no harm done in asking in fact you might even be able to glean some info from their support team like whether they are competent or not or maybe alert them to the fact they have a problem which could be an indicator your ISP has been hacked. Its more common than you think.

              Edit. I'd monitor it and see if it changes in any way. Whilst JohnPoz says below its noise from the ISP, I guess some ISP are better than others as I dont see that from the ISP's I've dealt with here in the UK who allocate fixed ip's.

              Capitalism, currently The World's best Entertainment Control System and YOU cant buy it! But you can buy this, or some of this or some of these

              Asch Conformity, mainly the blind leading the blind.

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              • johnpozJ Offline
                johnpoz LAYER 8 Global Moderator
                last edited by

                its noise from your isp.. And the default rule of block private on wan is logging it..  Its just dhcp noise.. yeah you can see that from other users of your isp, etc.  if was me I would just turn off logging of it - its going to fill up your logs..

                Want to see more noise look at all the arps your seeing as well ;)

                But your saying your seeing 50K packets?  in what span of time?  That box really wants to renew its ip.. Do you have public on your wan?  or do you have a private 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

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                • K Offline
                  killmasta93
                  last edited by

                  lolz the past 4 days crazy picture. But you know whats funny my lSP modem somehow has 2 static IP one is the 181.xxx.xx.xx and I have another network which is 201.xx.xx.xx. not sure how i got this well..originally my 201.xxx.xx.xx I bought static but when I started to put windows server and pfSense I wanted to separate to do tests so i would not mess up my main network, so then i connected to port 2 on the lSP modem to the pfSense and got another IP.  ;D

                  Clipboarder.2015.08.28-003.png
                  Clipboarder.2015.08.28-003.png_thumb

                  Tutorials:

                  https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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                  • johnpozJ Offline
                    johnpoz LAYER 8 Global Moderator
                    last edited by

                    port 2 on the modem?  Not a modem then its a gateway.  So do you have these publics on your pfsense WAN or is pfsense private natted behind your "modem"

                    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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                    • K Offline
                      killmasta93
                      last edited by

                      I think you are right its a gateway. The gateway that i have is a technicolor heres a pic of the setup

                      Drawing2.jpg
                      Drawing2.jpg_thumb

                      Tutorials:

                      https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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                      • johnpozJ Offline
                        johnpoz LAYER 8 Global Moderator
                        last edited by

                        still didn't really answer my question.. Does pfsense actually have a public on its interface, same with your netgear dd-wrt or are they on a natted network from your isp gateway??

                        go to pfsense interfaces..

                        waninterface.png
                        waninterface.png_thumb

                        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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                        • K Offline
                          killmasta93
                          last edited by

                          Yep it does, Also by the way i have been trying to block that IP but without the logs i tried
                          Disable the checkbox "block RFC1918" on the WAN-config page.
                          Create an alias containing 10.0.0.0/8, 172.16.0.0/12 and 192.198.0.0/16.
                          Create on your WAN a new block-rule with as source any and as destination the previously created alias.

                          But no luck  :(

                          Clipboarder.2015.08.28-010.png
                          Clipboarder.2015.08.28-010.png_thumb
                          Clipboarder.2015.08.28-009.png
                          Clipboarder.2015.08.28-009.png_thumb
                          Clipboarder.2015.08.28-008.png
                          Clipboarder.2015.08.28-008.png_thumb
                          Clipboarder.2015.08.28-006.png
                          Clipboarder.2015.08.28-006.png_thumb

                          Tutorials:

                          https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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                          • DerelictD Offline
                            Derelict LAYER 8 Netgate
                            last edited by

                            Disable the checkbox "block RFC1918" on the WAN-config page.
                            Create an alias containing 10.0.0.0/8, 172.16.0.0/12 and 192.198.0.0/16.
                            Create on your WAN a new block-rule with as source any and as destination the previously created alias.

                            That's because the traffic into your WAN is sourced from the address in question and destined for your WAN address.  You have pass source any dest RFC1918 so it's not going to match.

                            What you want is to leave the block RFC1918 traffic enabled on WAN.

                            If you don't want to see it logged, either put another block rule for the specific source IP address on WAN without logging (put it at the top) or turn off the logging for those block rules in Status > System Logs > Settings

                            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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                            • K Offline
                              killmasta93
                              last edited by

                              thanks silly me  ;D

                              Tutorials:

                              https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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

                                So who says its not your gateway sending out that traffic?  What makes no sense is that 50K packets would come from the SAME ip.. Seems like a bug in the dhcp client.. That would not be a discover packet but a renew packet since its sourced from IP and not 0.0.0.0

                                I would take it coming from your gateway device. What is the mac of the packet..  Does it match up to what your gateway device is?  Is your ddwrt device seeing these packets?

                                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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                                • K Offline
                                  killmasta93
                                  last edited by

                                  well i ran wireshark on both network. But nothing from that IP but I think your right the gateway is trying to renew its IP from the 181.xx.xxx because originally its not static maybe that could be the cause?

                                  Also had to uncheck on settings logs the option of Log packets blocked by 'Block Private Networks' rules for it not to log that 10.141.5.1

                                  Thank you

                                  Clipboarder.2015.08.29-003.png
                                  Clipboarder.2015.08.29-003.png_thumb
                                  Clipboarder.2015.08.29-002.png
                                  Clipboarder.2015.08.29-002.png_thumb

                                  Tutorials:

                                  https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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                                  • johnpozJ Offline
                                    johnpoz LAYER 8 Global Moderator
                                    last edited by

                                    those are different source macs… Where did you sniff that at?  pfsense wan?  Are you seeing 50K of those packets again?

                                    00:24:b2 is netgear.. hat is prob its lan with that 192.168.1.1

                                    that other mac is

                                    Hon Hai Precision Ind.Co.Ltd
                                    Address
                                        Taipei Hsien 236
                                        TAIWAN, PROVINCE OF CHINA
                                    Range
                                        D0:27:88:00:00:00 - D0:27:88:FF:FF:FF
                                    Type
                                        IEEE MA-L

                                    Which have no idea what that is..

                                    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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                                    • K Offline
                                      killmasta93
                                      last edited by

                                      yeah my bad i forgot to sniff the gateway from my lSP now i see the DHCP renewing but not the 50k packets. Im pretty sure my lSP is trying to renew my WAN of the 181.xx.xx.xx  :(

                                      Also whats curious is that my gateway is on bridge mode which in theory It should not give me DHCP when connecting though wifi to my lSP gateway?
                                      Or am i Completely  wrong?

                                      Clipboarder.2015.08.30.png_thumb
                                      Clipboarder.2015.08.30.png
                                      Clipboarder.2015.08.30-002.png
                                      Clipboarder.2015.08.30-002.png_thumb

                                      Tutorials:

                                      https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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                                      • johnpozJ Offline
                                        johnpoz LAYER 8 Global Moderator
                                        last edited by

                                        Your isp doesn't renew anything  A client when about 50 of its lease or when told to via dhcp options will attempt to renew.. This comes from the dhcp client.

                                        Why are you showing what looks like public IP but then also 10.141.51.1 address?  So is it getting renewed or is it sending every few seconds still?

                                        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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                                        • K Offline
                                          killmasta93
                                          last edited by

                                          so the public IP is the 201.xx.xx.xx im not sure why it shows 10.141.5.1 now heres the weird part So I can also connect though WIFI to the gateway and and shows something totally different. see Picture. Also the 10.141.5.1 I have it turned off the logging im sure its still blocking.
                                          is this even possible to have this IP? Im just confused how I have internet when the gateway is on bridge mode and I am able to connect directly though WIFI.

                                          Clipboarder.2015.08.30-015.png
                                          Clipboarder.2015.08.30-015.png_thumb

                                          Tutorials:

                                          https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

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                                          • johnpozJ Offline
                                            johnpoz LAYER 8 Global Moderator
                                            last edited by

                                            that is a public IP with a very large mask /18 man that is big mask.. Yeah if ts bridge mode you would get IP from isp over wireless..  Normally you only get 1 IP.. It seems odd that you have 2 different IP blocks there you were seeing.

                                            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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