[NEBULA] VPN with Ubuntu 18.04

MGK
MGK Posts: 9  Freshman Member
First Comment Fifth Anniversary
edited April 2021 in Nebula
Goodmorning everyone,
With an NSG50 gateway I created a vpn l2tp ipsec. With windows working properly.
I'm trying to configure a linux client with ubuntu 18.04 but it doesn't connect.
I added l2tp support on ubuntu following this guide:


but still does not connect.
Are there any other parameters to add? I was thinking about the phase 1 and 2 algorithms but I can't find any settings on nebula to know how they are set.
Has anyone already addressed this problem?
Thank you!

All Replies

  • ivers
    ivers Posts: 45  Freshman Member
    First Comment First Answer Friend Collector Fifth Anniversary
    I can establish the tunnel successfully with Ubuntu is your NSG located behind the NAT gateway?
    And is there any relevant clues in event log?
  • MGK
    MGK Posts: 9  Freshman Member
    First Comment Fifth Anniversary
    no particular event in the event log. the NSG (nebula) is placed behind a router with the nat activated (NOT double nat). VPN with a windows client works correctly.
  • TomorrowOcean
    TomorrowOcean Posts: 60  Ally Member
    First Comment First Answer Friend Collector Seventh Anniversary
    @MGK , I just follow the steps from the link you provide and I can establish L2TP VPN between my Ubuntu(18.0.4) and my NSG100.
    I just use like what the website says:
    Phase 1 Algorithms: 3des-sha1-modp1024 
    Phase 2 Algorithms: 3des-sha1

    If you use different, maybe you may share what algorithms you use.
  • MGK
    MGK Posts: 9  Freshman Member
    First Comment Fifth Anniversary
    now works,
    it wasn't the phase one and two algorithms I had put in, but I had to deselect the use of PAP from the PPP settings.
    Thanks a lot!

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