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    C2758 vs C3758 for Gigabit VPN?

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    • J
      JimPhreak
      last edited by

      @kejianshi:

      So, you need a mobo and a cpu?  Whats your feeling about power use and fans?

      As my OP states I'm looking for as low power as possible.  I have a spare Xeon D-1508 board I could use which is 25w aCPU but that's about as high on the TDP I want to go.

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      • K
        kejianshi
        last edited by

        https://forum.pfsense.org/index.php?topic=127757.msg707310#msg707310  (confirmed to work)

        I'd consider the Intel Core i3-7350K @ 4.20GHz since it is one of the fastest single thread cpus you can get.  Make sure the board supports it.  And the power.

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        • K
          kejianshi
          last edited by

          Never tested with ipsec that I can tell, but anything with that much guts for openvpn is going to max out a 1gb wire speed.

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          • J
            JimPhreak
            last edited by

            I have an i3-6100 in another system that I could rearrange and use but was hoping to avoid using something that powerful.  This system is going to be sitting in the basement of my parents house with no cooling.

            Maybe I'll setup a test bed between the i3-6100 and the C2758 and see what results I get.

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            • K
              kejianshi
              last edited by

              My method is like this…  In situations like that where you want big performance.

              Put it in a normal PC case.  Use a fanless power supply.

              Attach a way over kill heat sink like you might use on a 130w processor.  Attach a fan.

              Attach a fan to the PSU anyway...

              Put in a case fan...

              It will be ice cold and if all the fans fail it will keep working anyway.

              The one I'm using now is very old and is just such a setup.  Also sitting in the basement of my house in maryland.  Not touched in 5 years.

              Fanless is better if you have the money.

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              • K
                kejianshi
                last edited by

                Like this….

                It will never ever get hot...

                ![Screenshot-2017-11-2 pfsensegateway localdomain - Status Dashboard.png](/public/imported_attachments/1/Screenshot-2017-11-2 pfsensegateway localdomain - Status Dashboard.png)
                ![Screenshot-2017-11-2 pfsensegateway localdomain - Status Dashboard.png_thumb](/public/imported_attachments/1/Screenshot-2017-11-2 pfsensegateway localdomain - Status Dashboard.png_thumb)

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                • J
                  JimPhreak
                  last edited by

                  Haha nice, yea that thing is good to go.

                  This project is really get out of hand and over budget unfortunately.  This all started when both mine and my parents go Gigabit fiber which is allowing me to move my local backup server off-site to their house (Site B) for weekly backups.  Buying a new CPU/MoBo combo to replace the current J1900 I have there in Site B and just slapping it into the current NUC sized Mini-ITX case was really the plan.  That plans is clearly that's going off the rails now.

                  Maybe I need to rethink what my actual needs are.  As much as I'd like to saturate my gigabit link, if I can even get 50MB/s file transfers that would probably suffice.

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                  • K
                    kejianshi
                    last edited by

                    I get gigabit throughput with about 60% processor using an old celeron.  Similar setup to what I just told you about.  $75

                    That board you said you have laying around will do it….  Just strap on a huge heatsink, just to be sure.

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                    • K
                      kejianshi
                      last edited by

                      Yeah - the Intel Xeon D-1518 is only 35w.  And has AES-NI support.  You have what you need already.

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                      • J
                        JimPhreak
                        last edited by

                        @kejianshi:

                        I get gigabit throughput with about 60% processor using an old celeron.  Similar setup to what I just told you about.  $75

                        That board you said you have laying around will do it….  Just strap on a huge heatsink, just to be sure.

                        You get gigabit throughput across a Site-to-Site VPN?  If so, with what settings?

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                        • J
                          JimPhreak
                          last edited by

                          @kejianshi:

                          Yeah - the Intel Xeon D-1518 is only 35w.  And has AES-NI support.  You have what you need already.

                          I have the Xeon D-1508, not 1518.  Half the cores/threads.

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                          • K
                            kejianshi
                            last edited by

                            No Havent not test with ipsec.  However, I've seen people test 8 core atom boards with less guts than your board and get gigabit speed.

                            Its not hard to beat them as long as you have good per core performance, 2 or more cores and compatible gigabit NICs.

                            It just gets hard and expensive when you try to do it with a fanless computer the size of a couple packs of cigarettes.

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                            • J
                              JimPhreak
                              last edited by

                              @kejianshi:

                              No Havent not test with ipsec.  However, I've seen people test 8 core atom boards with less guts than your board and get gigabit speed.

                              Its not hard to beat them as long as you have good per core performance, 2 or more cores and compatible gigabit NICs.

                              It just gets hard and expensive when you try to do it with a fanless computer the size of a couple packs of cigarettes.

                              Wait, I'm confused.  So the C2758 SHOULD do close to 1Gbps IPsec?  Because if it does than that solves all my issues.

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                              • K
                                kejianshi
                                last edited by

                                https://store.netgate.com/pfSense/C2758.aspx

                                160

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                                • J
                                  JimPhreak
                                  last edited by

                                  @kejianshi:

                                  https://store.netgate.com/pfSense/C2758.aspx

                                  160

                                  However, I've seen people test 8 core atom boards with less guts than your board and get gigabit speed.

                                  What 8 core atom board are you referring to then?

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                                  • K
                                    kejianshi
                                    last edited by

                                    I thought I was referring to that one!

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                                    • J
                                      JimPhreak
                                      last edited by

                                      @kejianshi:

                                      I thought I was referring to that one!

                                      So the reason I'm confused is in one post you say you've seen people with the C2758 (an 8 core atom board) hit gigabit vpn speed but then in the next post you say it only hits 160 as per Netgate.

                                      What am I missing?

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                                      • K
                                        kejianshi
                                        last edited by

                                        haha.  You are missing me being mistaken about the throughput of that board.

                                        But I went looking again at an intel paper on ipsec and their chips and it does look like the best single core performance wins.

                                        https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/aes-ipsec-performance-linux-paper.pdf

                                        Notice their testing is 1 core and 1 tunnel.  Or 6 cores and 6 tunnels.  Then 12 cores and 12 tunnels.

                                        I still like the i3 kaby lake.

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                                        • V
                                          VAMike
                                          last edited by

                                          @kejianshi:

                                          https://store.netgate.com/pfSense/C2758.aspx

                                          160

                                          For some bizarre reason they're quoting speeds without AES-NI there, and no AES-GCM. So, basically irrelevant.

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                                          • V
                                            VAMike
                                            last edited by

                                            @kejianshi:

                                            haha.  You are missing me being mistaken about the throughput of that board.

                                            But I went looking again at an intel paper on ipsec and their chips and it does look like the best single core performance wins.

                                            https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/aes-ipsec-performance-linux-paper.pdf

                                            Notice their testing is 1 core and 1 tunnel.  Or 6 cores and 6 tunnels.  Then 12 cores and 12 tunnels.

                                            I still like the i3 kaby lake.

                                            I don't entirely understand what you think you're seeing there. It has a single westmere core doing ~2Gbps IPSec 7 years ago on linux 2.6.

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