VPN between ZyWall 110 and USG 20 is CONNECTED but can't ping

ictforeverictforever Member Posts: 15  Freshman Member
Hi great people,

I have a VPN IPSEC between two beautiful Zyxel firewalls. I have a connection, so that is great! The only problem is, I can't ping to each other. I checked everything but I can't find the issue. Anyone here that can guide me to the right direction or can help me through TeamViewer?

Thanks a lot!



  • lalalandlalaland Member Posts: 14  Freshman Member
    Do you mean you cannot ping to Device(Peer USG interface IP) or Remote site lan side host?

  • ictforeverictforever Member Posts: 15  Freshman Member
    I can't ping to the remote site lan. For example the firewall on the remote site or the printer.
  • Zyxel_CooldiaZyxel_Cooldia Zyxel Official Agent Posts: 258  mod
    It looks like the packet is blocked by security policy rule, can you disable both site firewall rule temporarily for testing and try it again?

  • ictforeverictforever Member Posts: 15  Freshman Member
    edited June 1, 2018 3:57PM
    The problem was that there was an inactive vpn gateway on the top. After removing it, it worked.
    It's weird, because it was showing inactive. I thought that this will not apply on the rules.

    Zyxel Support helped me on this. Thanks to them!
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