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Michal21's avatar
Michal21
Initiate
Oct 19, 2021

NTP Client GS752TS and GS748Tv4H2 Port

Hello, I have a question and a Problem Switch GS748Tv4H2 asks my NTP server after Port 1031 or 1025 despite defined Port 123

On the other hand, the Switch GS752TS asks for port 123 without any problems

 

Am I able to somehow force the Switch GS748Tv4H2 to also make a query after Port 123?

I do not find such an option anywhere.

3 Replies

  • schumaku's avatar
    schumaku
    Guru - Experienced User
    The firewall log does show a source port >1024/udp, the destination port is the configured 123/udp.

    Nothing wrong here I'd say.
    • Michal21's avatar
      Michal21
      Initiate

      Well, Switches send an inquiry from Port 1025 and 1031 and not from Port 123 like the other Switches. Therefore, I would like to ask if I can set this switch to make a query from port 123 and not from 1031 or 1025.

      • schumaku's avatar
        schumaku
        Guru - Experienced User
        Different eg. for DNS XFER there is not requirement for having the source port on 123/udp for SNTP isn't it?

        Said that, you can't change the switch IP stack and the SNTP client config for a different source port.

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