🧩IPv6 Setup Guide for PCDN Nodes

🚀 1. Why IPv6 is Important

In some regions of Vietnam, the PCDN network relies on IPv6 for stable data routing. If IPv6 is not enabled, your node may:

• Fail to connect or stay offline

• Experience upload/download issues

• Miss out on earning rewards

✅ Enabling IPv6 = better connection, faster transfer, and higher reliability

🧩 2. Quick IPv6 Check

✅ Option 1: Test via Browser

Visit https://test-ipv6.com/

• If it shows “Your IPv6 connection appears to work” → IPv6 is enabled

• If only IPv4 appears → follow the setup steps below

✅ Option 2: Command Line Test

ping -6 google.com

If you get a response → IPv6 is working If you see “Network unreachable” → IPv6 is disabled

⚙️ 3. Enable IPv6

💻 On Linux (Ubuntu / Debian / CentOS)

1️⃣ Check IPv6 status

cat /proc/sys/net/ipv6/conf/all/disable_ipv6

If the result is 1, IPv6 is disabled.

2️⃣ Enable IPv6

sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
sudo sysctl -w net.ipv6.conf.default.disable_ipv6=0

3️⃣ Make it permanent Edit /etc/sysctl.conf and add:

net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.default.disable_ipv6 = 0

Then reload:

sudo sysctl -p

4️⃣ Verify

ip -6 addr show

If you see an address starting with 240x: (e.g., 2405: or 2401:), IPv6 is active ✅

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🪟 On Windows 10 / 11

1️⃣ Go to Control Panel → Network and Internet → Network Connections 2️⃣ Right-click your current connection → Properties 3️⃣ Check “Internet Protocol Version 6 (TCP/IPv6)” 4️⃣ Click OK and restart your computer

💡 Alternatively, via PowerShell (Admin):

Enable-NetAdapterBinding -Name "Ethernet" -ComponentID ms_tcpip6

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🌐 4. Enable IPv6 on Your Router / VPS

Most Vietnam ISPs (Viettel, VNPT, FPT) support IPv6, but it’s often disabled by default.

Home Router Setup

1. Log in to router: 192.168.1.1 or 192.168.0.1

2. Go to IPv6 Settings or Advanced → IPv6

3. Enable IPv6

4. Set connection type to DHCPv6 or SLAAC

5. Save and restart router

Recommended ISP Settings

ISP	Recommended Mode
Viettel	Auto / DHCPv6
VNPT	Native IPv6
FPT	Dual Stack (IPv4 + IPv6)

VPS Users

Before configuring in your OS, ensure IPv6 is enabled in your VPS dashboard and that an address has been assigned.

🔍 5. Verify IPv6 Connectivity

Run:

ping6 google.com

Or visit: https://ipv6-test.com/ If it shows “IPv6 Supported ✅”, you’re all set!

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🔄 6. Restart Your PCDN Node

Once IPv6 is working, restart your node service:

sudo systemctl restart pcdn

Or use the “Restart Node” option in your dashboard.

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✅ 7. Final Checklist

Item	Status
IPv6 enabled on OS	✅
IPv6 assigned by router/VPS	✅
ping6 test successful	✅
Node shows “Online” in dashboard	✅

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💬 Tips & Notes

• For mobile networks (4G/5G), ensure your APN mode is set to Dual Stack (IPv4 + IPv6).

• Some ISPs require enabling DHCPv6 before IPv6 becomes active.

• If you still can’t connect, share a screenshot of your ip -6 addr show and test results in the community — our team will help you troubleshoot.

Thank you for helping build a faster, more stable PCDN network! 💪🌍