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    Does pfSense support SNTP

    Scheduled Pinned Locked Moved General pfSense Questions
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    • G
      Gray1L Banned
      last edited by

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      • JKnottJ
        JKnott @johnpoz
        last edited by

        @johnpoz said in Does pfSense support SNTP:

        Where do you see that?

        On one of the support forums. I saw that link with the 2 packages. 1.0.8.3 installs, 1.4.10.06 doesn't. Apparently the issue has to do with memory size and the fact that the package now includes the boot code. If you check the downloads, you'll see they have a different file type and my switch will not accept the new file type. I have the SG200-08.

        PfSense running on Qotom mini PC
        i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
        UniFi AC-Lite access point

        I haven't lost my mind. It's around here...somewhere...

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        • johnpozJ
          johnpoz LAYER 8 Global Moderator
          last edited by

          @JKnott said in Does pfSense support SNTP:

          SG200-08

          Yeah I think that is E switch, because its not listed on the release notes for the 1.4.10.6 or even previous models..

          That firmware is quite old
          2014-09-29

          When did you buy this switch? Can you return it? There are much better deals out there I am sure..

          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

          JKnottJ 1 Reply Last reply Reply Quote 0
          • JKnottJ
            JKnott @johnpoz
            last edited by

            @johnpoz said in Does pfSense support SNTP:

            When did you buy this switch? Can you return it? There are much better deals out there I am sure..

            I bought it yesterday. I got it at a consumer level store that's known for low prices, likely because the stock tends to be older.

            PfSense running on Qotom mini PC
            i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
            UniFi AC-Lite access point

            I haven't lost my mind. It's around here...somewhere...

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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by

              Well if you want ipv6 and firmware that is not 5 years old.. You prob want to look for different model ;)

              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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              • JKnottJ
                JKnott @johnpoz
                last edited by

                @johnpoz

                I'm not too worried about IPv6 vs IPv4 for SNTP. Even with pfSense, the NTP servers I use support IPv4 only. However, I bought it so that I would have a managed Gb switch and that's what it does. I have the same situation with my TP-Link access point. The management is IPv4 only, but it passes IPv6 as needed, other than the previously mentioned issue that prevents me from running a 2nd SSID.

                PfSense running on Qotom mini PC
                i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                UniFi AC-Lite access point

                I haven't lost my mind. It's around here...somewhere...

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                • johnpozJ
                  johnpoz LAYER 8 Global Moderator
                  last edited by johnpoz

                  @JKnott said in Does pfSense support SNTP:

                  he NTP servers I use support IPv4 only.

                  There are plenty of IPv6 ntp out there you could point too.. Shoot I have my pi stratum 1 ntp server in the pool via ipv6 and ipv4.. It sees plenty of ipv6 clients...

                  Your the whole IPv6 is the greatest thing since sliced bread guy around here - that you have hardware that doesn't support ipv6 pokes holes in your whole the ipv6 revolution is here, you ipv4 guys are behind the times... Must Use IPv6!!! ;)

                  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

                  JKnottJ 1 Reply Last reply Reply Quote 0
                  • JKnottJ
                    JKnott @johnpoz
                    last edited by

                    @johnpoz said in Does pfSense support SNTP:

                    @JKnott said in Does pfSense support SNTP:

                    he NTP servers I use support IPv4 only.

                    There are plenty of IPv6 ntp out there you could point too.. Shoot I have my pi stratum 1 ntp server in the pool via ipv6 and ipv4.. It sees plenty of ipv6 clients...

                    No doubt there are IPv6 servers. However, I've been using the same ones since long before I started with IPv6.

                    Your the whole IPv6 is the greatest thing since sliced bread guy around here - that you have hardware that doesn't support ipv6 pokes holes in your whole the ipv6 revolution is here, you ipv4 guys are behind the times... Must Use IPv6!!! ;)

                    I think you'll find I'm opposed to those who think IPv4 is all that's necessary, even though it hasn't been adequate, due to limited address space, for many years. Even Vint Cerf has said he never intended for 32 bit addresses to be inflicted on the public. It was only to be a concept demo. I am fully in favour of IPv6, as it brings some other advantages, beyond just increased address space. If it had sufficient address space, IPv4 would have been OK. I also not the type to toss functioning equipment, just because something better came along, unless I would get benefit from doing so. Thus my change to a Gb switch, as my Internet connection bandwidth was approaching 100 Mb. My AP is 2.4 GHz 802.11n as going beyond that wouldn't bring me much advantage, since my notebook computer is only 2.4 GHz n. Also, you're talking to a guy that used to use SNA, along with NetBIOS and IP on the same computer. I was also working with networks before Ethernet and IP were available, so I'm not afraid of old stuff.

                    As for NTP etc., I recently got into a discussion with a co-worker on a project we were working on. This project involved 2 GPS NTP servers (they weren't part of our work), located a few miles apart. He couldn't understand that multiple NTP servers should be peered, rather than main & fallback. There were other servers and the plan was to have the master on our project sync, not peer, with those on another network where there were two more. With 4 GPS NTP servers, they should have all been peered.

                    PfSense running on Qotom mini PC
                    i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                    UniFi AC-Lite access point

                    I haven't lost my mind. It's around here...somewhere...

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                    • KOMK
                      KOM
                      last edited by

                      I must admit that I don't like IPv6 because I don't really understand it and all of its ramifications, and I've been getting by with IPv4 for decades.

                      JKnottJ 1 Reply Last reply Reply Quote 0
                      • JKnottJ
                        JKnott @KOM
                        last edited by

                        @KOM

                        What's to understand? Fundamentally, it works the same way as IPv4. You have packets, routing works the same and more. The same traffic is supported and from a user perspective it makes no difference whether IPv4 or IPv6 is used. However, in addition to the immense address space, there are a lot of technical improvements that go to performance. For example ARP is gone and replaced with ICMP6 neighbour solicitation. There is also automatic address configuration, without needing DHCP, though it's also available. The fixed length headers improve router performance and more. The designers of IPv6 took the good points of IPv4 and discarded the bad. One example of the bad is broadcasts. They caused disturbance to devices on the network, whether they were interested in the traffic or not. That's been replaced with multicasts. With mulitcasts, the closest to broadcasts is all hosts multicast, which go to all devices. However that would only be done with things, such as router advertisements that must go to all devices. Otherwise targeted multicast groups, such as all routers, etc. would be used. A really big bad that's no longer needed is NAT. There are some things which did not appear in IPv4, such as using SLAAC to assign addresses to devices or DHCPv6-PD, which ISPs use to provide the network prefix to customers. So, do a bit of reading and you can learn about IPv6. One book I recommend is "IPv6 Essentials", from O'Reilly, which covers IPv6 very well, though it doesn't cover DHCPv6-PD.

                        PfSense running on Qotom mini PC
                        i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                        UniFi AC-Lite access point

                        I haven't lost my mind. It's around here...somewhere...

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                        • KOMK
                          KOM
                          last edited by

                          @JKnott said in Does pfSense support SNTP:

                          JKnott: "What's to understand?"

                          Lists a dozen things I don't understand.

                          ๐Ÿ˜† ๐Ÿ˜† ๐Ÿ˜†

                          I get the very basic top-level stuff, but all of those features you mentioned were news to me. I had no idea that IPv6 doesn't use ARP, for example. Plus, I don't use it here at work and likely never will unless our ISP revoked all IPv4 support.

                          Thanks for the book tip. I'll definitely look into it. I know I need to up my IPv6 game but didn't even know where to start. In past years I had tried reading up on it but I could never find a good resource. IPv6 and VLANs kind of passed me by.

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                          • JKnottJ
                            JKnott @KOM
                            last edited by JKnott

                            @KOM

                            I find the best way to learn is to do. I've been using IPv6 for 9 years and knew little about it when I started. Now, I know more about it than the tier two support and senior techs at my ISP (I had to teach them, when I had a problem recently.). One thing that really goes a long way in learning about networks is Wireshark. With it, you can look at the packets to see what's in them. By using Wireshark, I was able to identify the failing system, by name, at my ISP, weeks before they finally figured it out.

                            VLANs are just logically separate networks that appear as though they're physically different. That's done with a VLAN tag, that contains the VLAN number. Again, reading and Wireshark can help you learn. A good reference is "Ethernet", again from O'Reilly (I have a lot of O'Reilly books ๐Ÿ˜ ). It covers VLANs and a lot of other things.

                            PfSense running on Qotom mini PC
                            i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                            UniFi AC-Lite access point

                            I haven't lost my mind. It's around here...somewhere...

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                            • KOMK
                              KOM
                              last edited by

                              I understand the basic concept of VLANs, just not the specifics and gotchas. Anyway, I didn't mean to hijack this thread into a personal tutorial for me. Thanks for your suggestions.

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                              • JKnottJ
                                JKnott @KOM
                                last edited by

                                @KOM
                                Well, it's my thread and I don't mind. Forums like this are a great way to learn, even if things drift off topic.

                                PfSense running on Qotom mini PC
                                i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                                UniFi AC-Lite access point

                                I haven't lost my mind. It's around here...somewhere...

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                                • NogBadTheBadN
                                  NogBadTheBad @Gertjan
                                  last edited by

                                  @Gertjan said in Does pfSense support SNTP:

                                  @JKnott said in Does pfSense support SNTP:

                                  Wow, I can use XMODEM to upload a file!!! .... TFTP .....

                                  Nice ! You just made me think about a period, some 3 decades ago.
                                  Back then, a Wellar solding station was as important as a keyboard.

                                  You still have to XMODEM IOS to a Cisco switch if there's no IOS in flash :)

                                  Andy

                                  1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

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                                  • JKnottJ
                                    JKnott @NogBadTheBad
                                    last edited by

                                    @NogBadTheBad said in Does pfSense support SNTP:

                                    You still have to XMODEM IOS to a Cisco switch if there's no IOS in flash :)

                                    I think I saw that mentioned in my search for firmware updates. However, that would be a bit difficult to do without a serial port on that box. However, what is does to is create a web server, if the firmware can't be found. That web server can then be used to upload the firmware. I wonder if that gets turned on, when http upload is selected. I was using tftp, where I had to specify the IP address and file, but the missing firmware web server was 192.168.1.254, IIRC. I'll have to look into that.

                                    PfSense running on Qotom mini PC
                                    i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                                    UniFi AC-Lite access point

                                    I haven't lost my mind. It's around here...somewhere...

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