6th and 7th IPSec tunnel traffic not passing

  • We have been using a cloud based pfSense(hosted with Vultr's New Jersey datacenter) for about a year or so now for our company.

    It has been GREAT!

    We have 5 sites connected to our cloud infrastructure.

    The 5 sites are using Zyxel USG20-vpn appliances and are working great.

    We have then added a 6th site using another pfsense virtual appliancehosted with Vultr's Seattle datacenter).

    Since adding this 6th IPsec tunnel:

    • The tunnel gets established but no traffic is passing between the sites.

    • We have also added a 7th IPsec tunnel using another Zyxel USG20-vpn appliance and the same issue, the tunnel gets established but no traffic is passing.

    Would any one have any ideas on what may be causing this?

    Is there a limitation on the number of IPsec Tunnels each pfSense can support?

  • You shouldn't have any trouble with six, I've had boxes with nearly forty active tunnels.

  • Thanks for the reply.

    Can you help me shed any light on what to check?

    I've recreates the tunnels one too may times to count but cannot get the 6th and 7th tunnels to route traffic even thought the first site to site tunnels are functioning flawlessly.

  • All of your p2's are unique? Are you seeing anything in the logs?