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    Enabling GRE/IPIP

    Enable tunneling protocols for VPN and network routing on your OpenVZ VPS.

    Table of Contents

    OpenVZ Only

    This article only applies to OpenVZ VPS instances. KVM and Cloud instances have full access to GRE and IPIP without any special configuration.

    What are GRE and IPIP?

    GRE (Generic Routing Encapsulation) and IPIP (IP in IP) are tunneling protocols used to encapsulate network traffic. Common use cases include:

    • VPN connections
    • Network routing between data centers
    • IPv6 over IPv4 tunneling
    • Software-defined networking (SDN)

    Enabling GRE/IPIP on OpenVZ

    If you would like to use your RamNode IP(s) to create a GRE or IPIP tunnel, please submit a support ticket requesting that GRE/IPIP be enabled for your VPS.

    1

    Log into Client Area

    Go to the Client Area

    2

    Open New Ticket

    Open a new support ticket under "Technical Support"

    3

    Include VPS Details

    Include your VPS ID or IP address

    4

    Specify Protocol

    Specify which protocol you need (GRE, IPIP, or both)

    5

    Describe Use Case

    Describe your use case briefly

    After Enabling

    Once GRE/IPIP is enabled for your container, you'll be able to create tunnels using standard Linux networking tools. You may need to reboot your VPS for the changes to take effect.

    Testing GRE/IPIP

    After enabling, you can verify the modules are available:

    lsmod | grep -E 'gre|ipip'
# or
cat /proc/net/dev_snmp6/tunl0