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    Why outgoing LAN being blocked?

    Scheduled Pinned Locked Moved Firewalling
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    • P
      phil.davis
      last edited by

      Good that the latency is better now. Next you probably want to understand what the 10.x.x.x address is about. As JohnPoz said, there is no need to hide those as it is private address space and no-one can find you using "10" addresses.
      What is your WAN IP and WAN gateway addresses?
      (Status->Interfaces should tell you what addresses the WAN was given)
      Most likely they are 10.x.x.x and that just means your cable modem is in router mode rather than bridge mode.

      As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
      If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        Well if that is your model number, it is just a cable modem I don't see anywhere in its docs talking about NAT..  So if your seeing a 10.x.x.x as you next hop.. Your ISP is doing it..

        Again 10.x.x.x is PRIVATE its NOT routeable on the internet..

        http://en.wikipedia.org/wiki/Private_network

        Normally in a cable connection, I have one I have a SB6120 cable modem - my pfsense gets a public IP address 24.13.x.x – this is own by comcast.

        whois 24.13.0.0
        NetRange:      24.0.0.0 - 24.15.255.255
        CIDR:          24.0.0.0/12
        NetName:        EASTERNSHORE-1
        NetHandle:      NET-24-0-0-0-1
        Comment:        ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
        RegDate:        2003-10-06
        Updated:        2012-03-02
        Ref:            http://whois.arin.net/rest/net/NET-24-0-0-0-1
        OrgName:        Comcast Cable Communications, Inc.

        Look up 10.x.x.x

        whois 10.0.0.0
        NetRange:      10.0.0.0 - 10.255.255.255
        CIDR:          10.0.0.0/8
        OriginAS:
        NetType:        IANA Special Use
        NetName:        PRIVATE-ADDRESS-ABLK-RFC1918-IANA-RESERVED

        Comment:        These addresses are in use by many millions of independently operated networks, which might be as small as a single computer connected to a home gateway, and are automatically configured in hundreds of millions of devices.  They are only intended for use within a private context  and traffic that needs to cross the Internet will need to use a different, unique address.

        Comment:        These addresses can be used by anyone without any need to coordinate with IANA or an Internet registry.  The traffic from these addresses does not come from ICANN or IANA.  We are not the source of activity you may see on logs or in e-mail records.  Please refer to http://www.iana.org/abuse/answers

        So just like pfsense NATS changes your private range on your private side to normally what is a public address, pfsense is natting yours to your 10.x.x.x address, then your ISP HAS to change it again to some routeable address on the internet or sites you try to go to would not be able to talk back to you - since they can not talk to a 10.x.x.x address

        If you ISP has no idea why you have a 10.x.x.x address you should really call them back and ask to talk to someone that does know ;)  unless they are doing a 1:1 nat to what your public address is - its not possible for you to allow for unsolicited traffic behind a nat.. Port Forwards, maybe thats something your ok with?  Maybe they do 1:1 but that seems utterly pointless for them to do.

        But your connections should be much better now ;) with nice low ping time to your gateway..  Internet must be much better!

        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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        • S
          SixXxShooTeR
          last edited by

          @phil.davis:

          Good that the latency is better now. Next you probably want to understand what the 10.x.x.x address is about. As JohnPoz said, there is no need to hide those as it is private address space and no-one can find you using "10" addresses.
          What is your WAN IP and WAN gateway addresses?
          (Status->Interfaces should tell you what addresses the WAN was given)
          Most likely they are 10.x.x.x and that just means your cable modem is in router mode rather than bridge mode.

          My external IP and Gateway IP match except for the last octet, they aren't  10.x.x.x but start with 68.x.x.x

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by

            @SixXxShooTeR:

            My external IP and Gateway IP match except for the last octet, they aren't  10.x.x.x but start with 68.x.x.x

            And how is that since your first hop is 10.x.x.x

            So on pfsense what does it show for your wan interface?

            Sorry your hop shows you talking to a 10 address.. its not possible for a 68.x.x.x address to talk to a 10 address directly.. If you have a 68 address on pfsense, I am at a complete loss to how a 10 address would show up in your trace.

            wanipaddress.png
            wanipaddress.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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            • S
              SixXxShooTeR
              last edited by

              @johnpoz:

              @SixXxShooTeR:

              My external IP and Gateway IP match except for the last octet, they aren't  10.x.x.x but start with 68.x.x.x

              And how is that since your first hop is 10.x.x.x

              So on pfsense what does it show for your wan interface?

              Sorry your hop shows you talking to a 10 address.. its not possible for a 68.x.x.x address to talk to a 10 address directly.. If you have a 68 address on pfsense, I am at a complete loss to how a 10 address would show up in your trace.

              This is what mine is showing.

              WAN.png
              WAN.png_thumb

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              • P
                phil.davis
                last edited by

                Well, that is completely wacky. If you are still getting 10.x.x.x appearing early in your traceroute (from pfSense and/or a LAN client) then look in config.xml:
                Diagnostics->Edit
                /cf/conf/config.xml
                Search for "10."
                and Diagnostics->Routes - what is the default route?
                Is there some VPN server and client that connects to itself and routes around in a loop to make that bonus hop, or what???

                As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
                If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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                • S
                  SixXxShooTeR
                  last edited by

                  @phil.davis:

                  Well, that is completely wacky. If you are still getting 10.x.x.x appearing early in your traceroute (from pfSense and/or a LAN client) then look in config.xml:
                  Diagnostics->Edit
                  /cf/conf/config.xml
                  Search for "10."
                  and Diagnostics->Routes - what is the default route?
                  Is there some VPN server and client that connects to itself and routes around in a loop to make that bonus hop, or what???

                  Hey Phil,

                  I did as you asked and looked in the config.xml file, I pasted it into Word and ran a search for anything matching "10".. It didn't come back with any 10.x.x.x. I also looked through the file without the search function and didn't notice anything.

                  The IPv4 routing tables don't have any 10.x.x.x addresses listed. The default Gateway is 68.105.x.1, as it is for 8.8.4.4 and 8.8.8.8

                  Ran traceroute again, its still showing the 10.x.x.x as the first hop.

                  I have Private Internet Access configured on my PC but that is the only VPN I use and it is almost always disconnected. Running traceroute on my PC the first hop is 192.168.1.1 and the 2nd is 10.x.x.x

                  I do appreciate the help from both you and John, if nothing else I am learning a lot from this!

                  traceroute.png
                  traceroute.png_thumb

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by

                    I don't recall ever seeing anything like this before.

                    On pfsense check the mac of that 10 address if you can – we should then be able to figure out what hardware it is, maybe its your "modem" device..  Very strange!!

                    So in pfsense ping that hop directly 10.175.0.1 and then look in your arp table on pfsense with arp -a, do you see it listed..  What are the first 3 numbers at least and we can look them up via websites like this

                    http://www.coffer.com/mac_find/

                    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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                    • swinnS
                      swinn
                      last edited by

                      The 10.x.x.x IP is his cable company's CMTS.

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                      • S
                        SixXxShooTeR
                        last edited by

                        @johnpoz:

                        I don't recall ever seeing anything like this before.

                        On pfsense check the mac of that 10 address if you can – we should then be able to figure out what hardware it is, maybe its your "modem" device..  Very strange!!

                        So in pfsense ping that hop directly 10.175.0.1 and then look in your arp table on pfsense with arp -a, do you see it listed..  What are the first 3 numbers at least and we can look them up via websites like this

                        http://www.coffer.com/mac_find/

                        I pinged 10.175.0.1 and got a response but under Diagnostics -> ARP Table, or when using arp -a, I don't see any 10.x.x.x

                        $ arp -a
                        pfsense.localdomain (192.168.1.1) at 54:be:f7:X:X:72 on em1 permanent [ethernet]
                        ? (192.168.1.152) at 6c:f0:49:ce:8a:8d on em1 expires in 1195 seconds [ethernet]
                        ? (192.168.1.120) at 54:26:96:35:d8:ef on em1 expires in 1158 seconds [ethernet]
                        ? (192.168.1.125) at 00:11:32:1a:a0:6e on em1 expires in 1039 seconds [ethernet]
                        ? (192.168.1.188) at d4:3d:7e:18:94:ad on em1 expires in 1038 seconds [ethernet]
                        ip68-105-X-X.cox.net (68.105.X.X) at 54:be:f7:X:X:71 on em0 permanent [ethernet]
                        ip68-105-X-1.cox.net (68.105.X.1) at 00:26:99:X:X:X on em0 expires in 1199 seconds [ethernet]

                        I did search the MAC address belonging to the Gateway IP with the site you linked and it returned 2 results:

                        Cisco Systems
                        Prefix: 00:26:99

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          Can you run a under diag, on pfsense a capture on your wan interface and then ping it and capture the traffic.  Then we can see its mac in the wirecapture..  Then compare its mac to mac of your isp router at the 68.

                          Once you have the capture you can download into wireshark and see the mac.. Maybe its the same as your isp router?  Very odd how you get a hop between pfsense and its gateway that reports a 10.x.x.x address.

                          I can honestly say I don't believe I have ever seen such a thing.

                          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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                          • swinnS
                            swinn
                            last edited by

                            Again, this is the cable company CMTS: http://en.wikipedia.org/wiki/Cable_modem_termination_system

                            It's not that rare. Doing a traceroute over a Charter or Comcast connection will show a 10.x.x.x IP as well.

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                            • johnpozJ
                              johnpoz LAYER 8 Global Moderator
                              last edited by

                              "Doing a traceroute over a Charter or Comcast connection will show a 10.x.x.x IP as well."

                              No not really - I am on comcast, and as you see there is no 10.x in my trace.

                              See hop 2, next hop after my pfsense box

                              ;; ANSWER SECTION:
                              xx.xx.13.24.in-addr.arpa. 7194  IN      PTR    c-24-13-xx-xx.hsd1.il.comcast.net.

                              NetRange:      24.0.0.0 - 24.15.255.255
                              CIDR:          24.0.0.0/12
                              OrgName:        Comcast Cable Communications, Inc.

                              tracecomcast.png
                              tracecomcast.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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                              • swinnS
                                swinn
                                last edited by

                                I've seen it on some Comcast connections in the past. Here is mine (Charter):

                                Tracing route to 8.8.8.8 over a maximum of 30 hops
                                
                                  1    <1 ms    <1 ms    <1 ms  10.1.16.1
                                  2     8 ms     7 ms     8 ms  10.216.96.1
                                  3    11 ms    10 ms     9 ms  96.34.70.34
                                  4    13 ms    10 ms     9 ms  96.34.70.116
                                ...
                                
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                                • johnpozJ
                                  johnpoz LAYER 8 Global Moderator
                                  last edited by

                                  Your first hop is 10, which is local with that <1ms response time, and then your second hop is also 10..

                                  So your saying your router (pfsense/other) shows a public IP on it like his and mine, 68.x and my 24.x or does yours have a 10.x.x.x something on where the mask puts in in the same network as your hop 3 10.216.96.1

                                  What your showing makes sense where nat to public happening between hop 2 and 3.

                                  What doesn't make sense in his setup is he has a public showing a public gateway – but a 10.x in the middle.  Your trace looks like a typical double nat setup to me..

                                  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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                                  • swinnS
                                    swinn
                                    last edited by

                                    My router (pfSense) is 10.1.16.1. My first hop outside of my network is 10.216.96.1 which is the CMTS interface (Charter).

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                                    • johnpozJ
                                      johnpoz LAYER 8 Global Moderator
                                      last edited by

                                      No 10.1.16 is your LAN of pfsense - what is the WAN of your pfsense.  Is it 10.216 or say something public like my 24.x or his 68.x

                                      Your routers WAN ip would never been shown in a hop.  Unless tracing inbound to your 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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                                      • swinnS
                                        swinn
                                        last edited by

                                        My WAN IP is 68.186.x.x which of course isn't shown on an outbound tracert.

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                                        • S
                                          SixXxShooTeR
                                          last edited by

                                          @johnpoz:

                                          Can you run a under diag, on pfsense a capture on your wan interface and then ping it and capture the traffic.  Then we can see its mac in the wirecapture..  Then compare its mac to mac of your isp router at the 68.

                                          Hi John, can you please clarify the process of running an under diag on pfSense? On pfSense I would go to "Diagnostics -> Packet Capture"? I apologize if that is incorrect, this is all still somewhat new to me.

                                          I get this when I ran a packet capture on the WAN interface and used that 10.x (found in my tracert) as the Host Address->

                                          "IP 10.175.0.1.67 > 255.255.255.255.68: UDP, length 300".

                                          When I opened that packet capture in WireShark and looked for the MAC address I found–->

                                          "Ethernet II, Src: Cisco_X:X:X (00:26:99:X:X:X), Dst: Broadcast (ff:ff:ff:ff:ff:ff)".

                                          The arp -a showed that "ip68-105-X-1.cox.net (68.105.X.1) at 00:26:99:X:X:X on em0 expires in 1199 seconds [ethernet]"

                                          Under the Bootstrap Protocol section for the DHCP ACK its showing the Client MAC Address as "Motorola" prefix 00:0b:06.

                                          Under the same section, but for the DHCP Offer, its showing the Client MAC Address as "Cisco" prefix 00:22:6b.

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                                          • johnpozJ
                                            johnpoz LAYER 8 Global Moderator
                                            last edited by

                                            "My WAN IP is 68.186.x.x which of course isn't shown on an outbound tracert."

                                            And how exactly does a 68.186 address talk to a 10.x address?  And what exactly does pfsense say is your gateway address is?

                                            Where is anything close to 68.186?

                                            1    <1 ms    <1 ms    <1 ms  10.1.16.1
                                              2    8 ms    7 ms    8 ms  10.216.96.1
                                              3    11 ms    10 ms    9 ms  96.34.70.34

                                            Your trace makes NO sense if your saying pfsense shows your public IP as 68.186.x.x

                                            Notice in my trace..

                                            traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
                                            1  192.168.1.253  1.726 ms  1.603 ms  1.557 ms
                                            2  24.13.xx.1  19.559 ms  20.384 ms  38.945 ms
                                            3  68.85.131.149  19.922 ms  19.911 ms  19.906 ms

                                            Where my wan IP is 24.13.x.x with a /21 mask - and when I trace I show that hop my router talked to next – in the same network as actually IN..  ie 24.13.x.x/21

                                            You are looking at dhcp packets - no you want icmp in the dropdown of the packet capture.. And ping the 10.175.0.1 address from a client..  And only capture stuff to 10.175.0.1

                                            See where I use 8.8.8.8 use that 10.175.0.1 address you see in your trace

                                            capture.png
                                            capture.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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