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Connect to IPV6 network with public-ipv4-only VPS

There are many cloud service providers only sell public-ipv4-only virtual machines. But, for some reasons, having ipv6 support could make things easier. In this case, we’ll use ipv4 to ipv6 tunnel to connect to ipv6 network.

  1. register in HE.net tunnel broker for free to use ipv4ToIpv6 tunnel service 1.1. create tunnel 1.2. configure ipv6 tunnel on virtual machine through its example configurations.
  2. waiting until it is ready
  1. He.net unable to register by gmail and outlook.
    • Solution: it works with 163, registered at 2024-12-21.
  2. He.net cannot create ipv6 tunnel, caused by “This network is restricted”
    • Possible reason: He.net block target ip address
    • Solution: create tunnel with valid ipv4 address. Then, switch to blocked ip address, created at 2024-12-21
  3. He.net tunnel will close due to inactivity for a certain time.
    • Solution: ping a ipv6 website periodically every 10 minutes. Sh: crontab -l 2>/dev/null | echo "*/10 * * * * ping -c 2 ipv6.google.com" | crontab -