Nebula VPN Performance

Pook
Pook Posts: 131
First Answer First Comment Friend Collector Nebula Gratitude
 Ally Member
Hi everyone

Is there any settings or policy's I can use to make sure I am getting the best possible throughput? I have 2 sites linked via ATP800 and Flex700. Bother are on 1GB bearers up and down.

The best speed I get is around 1.4 megabyte per second. Any tweaks suggested would be greatly received :-)

All Replies

  • DanniKool
    DanniKool Posts: 17
    First Comment Fourth Anniversary
     Freshman Member
    I'm running with these settings.....

    IKEv2

    Phase 1
    Encryption: AES256
    Authentication: SHA1
    Diffie-Hellman group: DH14
    Lifetime: 86400

    Phase 2
    Encryption: AES256
    Authentication: SHA1
    PFS group: None
    Lifetime: 86400
  • DanniKool
    DanniKool Posts: 17
    First Comment Fourth Anniversary
     Freshman Member
    I've also set MTU on the WAN interface to 1370
  • WJS
    WJS Posts: 95
    5 Answers First Comment Friend Collector First Anniversary
     Ally Member
    Trying to decrease encryption length. 
    I will also try to observe whether the WAN/LAN has serious packet loss during the transmission process. If so you will see many Dup ack/ retransmission / out of order in wireshark. 
  • Zyxel_Kevin
    Zyxel_Kevin Posts: 582
    Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 50 Answers 500 Comments
     Zyxel Employee
    Hi @DanniKool,
    Greeting Forum. Please kindly capture packets on LAN/WAN.
    We will analyze whether the packet is out of order
    Thank you
    Kevin
  • Preston69
    Preston69 Posts: 1
    First Comment

    I am new here and i just want to tell you that To optimize network throughput on sites connected via ATP800 and Flex700, you can implement policies such as Quality of Service (QoS) to prioritize traffic, ensure proper bandwidth allocation, and reduce latency. It's also recommended to optimize network hardware and firmware, monitor network performance regularly, and troubleshoot any issues that may arise.

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