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OpenWrt IPv6 Setup Guide: Complete Configuration for LuCI and UCI

OpenWrt is one of the most powerful open-source router firmware platforms, offering extensive IPv6 support with granular control over configuration. Whether you're using the LuCI web interface or prefer command-line configuration via UCI, this comprehensive guide will walk you through setting up IPv6 on your OpenWrt router, from basic connectivity to advanced multi-VLAN scenarios.

Table of Contents

Prerequisites and Requirements

Verify ISP Support

Before configuring IPv6 on OpenWrt, confirm that your ISP supports IPv6. Contact your ISP or check their documentation to verify:

Hardware and Firmware Requirements

OpenWrt Version: IPv6 support has been mature since OpenWrt 15.05, but for the best experience, use OpenWrt 21.02 or newer. OpenWrt 22.03 and later include firewall4 (nftables-based), which handles IPv6 more efficiently.

Memory: IPv6 functionality requires minimal additional resources. Most routers with 8MB+ flash and 64MB+ RAM can handle IPv6 without issues.

Required Packages: Most packages are pre-installed in default builds:

Access to Router

Ensure you have:

Understanding OpenWrt IPv6 Architecture

OpenWrt's IPv6 implementation centers around several key components:

odhcpd - DHCP and Router Advertisement Daemon

odhcpd is the core daemon that handles:

Connection Modes

OpenWrt supports several IPv6 WAN connection types:

Service Modes for LAN

For LAN-side IPv6 distribution, OpenWrt uses these modes:

Basic IPv6 Setup via LuCI Web Interface

Step 1: Configure WAN6 Interface

The WAN6 interface handles IPv6 connectivity to your ISP.

  1. Access LuCI: Navigate to http://192.168.1.1 (or your router's IP)

  2. Login: Enter your root credentials

  3. Navigate to Interfaces: Go to Network > Interfaces

  4. Edit WAN6: If WAN6 doesn't exist, click Add new interface

    • Name: wan6
    • Protocol: DHCPv6 client
    • Device: Same as your WAN interface (e.g., eth0.2 or wan)

  5. Configure General Settings:

    • Request IPv6-address: try (attempts to get both prefix and address)
    • Request IPv6-prefix of length: auto (or specify 56 or 60 if your ISP requires)

  6. Firewall Settings:

    • Assign to firewall zone: wan

  7. Save and Apply

Step 2: Configure LAN IPv6 Settings

Configure how your router distributes IPv6 to local devices.

  1. Navigate to LAN Interface: Network > Interfaces > LAN > Edit

  2. Go to DHCP Server Tab

  3. Scroll to IPv6 Settings:

    • Router Advertisement Service: server mode
    • DHCPv6 Service: server mode (or hybrid for SLAAC + DHCPv6)
    • NDP-Proxy: disabled (unless bridging networks)
    • RA Flags: Leave default (managed flag, other flag)

  4. Advanced Settings (optional):

    • ULA-Prefix: Leave default or customize (generates unique local addresses)
    • IPv6 Suffix: Leave default (automatically derives from delegated prefix)

  5. IPv6 RA Settings:

    • Announced IPv6 DNS servers: Leave empty to use router, or specify (e.g., 2001:4860:4860::8888 for Google DNS)
    • RA Hop Limit: Leave default (64)

  6. Save and Apply

Step 3: Verify Connection

  1. Check Status: Network > Interfaces

  2. WAN6 Status: Should show:

    • An IPv6 address (global unicast, starts with 2xxx: or 3xxx:)
    • Uptime indicating connected status
    • Delegated prefix (e.g., 2001:db8:1234::/56)

  3. LAN Status: Should show IPv6 addresses derived from delegated prefix

UCI Command-Line Configuration

For advanced users or automation, UCI provides powerful command-line configuration.

Viewing Current Configuration

# View all network configuration
uci show network

# View specific interface
uci show network.wan6

# View DHCP/odhcpd settings
uci show dhcp

Configuring WAN6 via UCI

Create or modify the WAN6 interface for DHCPv6-PD:

# Set WAN6 interface protocol
uci set network.wan6=interface
uci set network.wan6.proto='dhcpv6'
uci set network.wan6.device='eth0.2'  # Match your WAN device
uci set network.wan6.reqaddress='try'
uci set network.wan6.reqprefix='auto'

# Commit changes
uci commit network

# Restart network
/etc/init.d/network restart

Configuring LAN IPv6 Distribution

# Configure LAN DHCP settings for IPv6
uci set dhcp.lan.dhcpv6='server'
uci set dhcp.lan.ra='server'
uci set dhcp.lan.ra_management='1'

# Optional: Set specific DNS servers
uci add_list dhcp.lan.dns='2001:4860:4860::8888'
uci add_list dhcp.lan.dns='2001:4860:4860::8844'

# Commit changes
uci commit dhcp

# Restart odhcpd
/etc/init.d/odhcpd restart

Firewall Zone Assignment

# Assign WAN6 to WAN firewall zone
uci set network.wan6.firewall='wan'
uci commit network
/etc/init.d/network restart

DHCPv6-PD and Prefix Delegation

Prefix delegation is critical for distributing IPv6 addresses across your network.

Understanding Prefix Delegation

When your ISP delegates a prefix (e.g., /56 or /60), your router receives a block of IPv6 addresses to distribute to your LAN. This prefix is further subdivided for each interface.

Common prefix sizes:

Learn more about IPv6 prefix sizes and allocation.

Requesting Prefix Delegation

LuCI Method:

  1. Network > Interfaces > WAN6 > Edit
  2. Request IPv6-prefix of length: Select desired size or auto
  3. Some ISPs honor requests for larger prefixes (try 48 or 56 if you need multiple networks)

UCI Method:

# Request specific prefix size
uci set network.wan6.reqprefix='56'
uci commit network
/etc/init.d/network restart

Viewing Delegated Prefix

Command line:

# View WAN6 interface status (includes delegated prefix)
ifstatus wan6

# Or use ubus directly
ubus call network.interface.wan6 status | grep -A5 ipv6-prefix

# JSON parsing with jq (if installed)
ubus call network.interface.wan6 status | jq '.["ipv6-prefix"]'

Configuring Prefix Distribution

By default, OpenWrt automatically assigns /64 subnets from the delegated prefix to each interface. You can customize this:

UCI Method:

# LAN gets first /64 from delegated prefix
uci set dhcp.lan.dhcpv6='server'
uci set dhcp.lan.ra='server'

# Optional: Specify subnet ID (0-255 for /56 delegation)
# This assigns 2001:db8:1234:5::/64 if delegated prefix is 2001:db8:1234::/56
uci set network.lan.ip6assign='64'
uci set network.lan.ip6ifaceid='::1'  # Router's IP suffix

uci commit
/etc/init.d/network restart

SLAAC Configuration

Stateless Address Autoconfiguration (SLAAC) allows clients to self-configure IPv6 addresses using Router Advertisements.

Pure SLAAC (No DHCPv6)

For networks where clients only need addresses and DNS via RA:

LuCI Method:

  1. Network > Interfaces > LAN > DHCP Server > IPv6 Settings
  2. Router Advertisement Service: server mode
  3. DHCPv6 Service: disabled
  4. RA Flags: Uncheck "Managed" and "Other config"

UCI Method:

uci set dhcp.lan.dhcpv6='disabled'
uci set dhcp.lan.ra='server'
uci set dhcp.lan.ra_management='0'
uci set dhcp.lan.ra_default='1'

# Announce DNS servers via RA
uci add_list dhcp.lan.dns='2001:4860:4860::8888'

uci commit dhcp
/etc/init.d/odhcpd restart

Hybrid Mode (SLAAC + DHCPv6)

Combines SLAAC for addresses with DHCPv6 for additional configuration:

LuCI Method:

  1. DHCPv6 Service: hybrid mode
  2. RA Flags: Check "Other config" but not "Managed"

UCI Method:

uci set dhcp.lan.dhcpv6='hybrid'
uci set dhcp.lan.ra='server'
uci set dhcp.lan.ra_management='0'  # SLAAC for addresses
uci set dhcp.lan.ra_flags='other-config'  # DHCPv6 for other settings

uci commit dhcp
/etc/init.d/odhcpd restart

Firewall Configuration for IPv6

OpenWrt's firewall configuration differs between firewall3 (ip6tables) and firewall4 (nftables). Both versions are configured via UCI and handle IPv4/IPv6 simultaneously. Learn more about configuring IPv6 firewalls.

Understanding OpenWrt Firewall Zones

OpenWrt uses zone-based firewalls with three default zones:

Basic IPv6 Firewall Rules

By default, OpenWrt's firewall allows:

No additional IPv6-specific configuration is typically needed for basic operation, as OpenWrt handles both protocols in the same ruleset.

Viewing Firewall Configuration

# View firewall zones
uci show firewall | grep zone

# View firewall rules
uci show firewall | grep rule

# View active IPv6 firewall rules (firewall3)
ip6tables -L -v -n

# View active firewall rules (firewall4)
nft list ruleset

Allowing Inbound IPv6 Services

To expose services (web server, SSH, etc.) on IPv6:

LuCI Method:

  1. Network > Firewall > Port Forwards (or Traffic Rules)
  2. Add new rule:
    • Name: Allow HTTPS IPv6
    • Protocol: TCP
    • Source zone: wan
    • Destination zone: Device (this router) or specific LAN IP
    • Destination port: 443
    • Family: IPv6 only (or IPv4 and IPv6)

UCI Method:

# Add firewall rule to allow HTTPS on router
uci add firewall rule
uci set firewall.@rule[-1].name='Allow-HTTPS-IPv6'
uci set firewall.@rule[-1].src='wan'
uci set firewall.@rule[-1].dest_port='443'
uci set firewall.@rule[-1].proto='tcp'
uci set firewall.@rule[-1].family='ipv6'
uci set firewall.@rule[-1].target='ACCEPT'

uci commit firewall
/etc/init.d/firewall restart

Port Forwarding to LAN Device

Forward incoming connections to a specific LAN device:

# Forward port 80 to LAN device at 2001:db8:1234:1::100
uci add firewall redirect
uci set firewall.@redirect[-1].name='Web Server IPv6'
uci set firewall.@redirect[-1].src='wan'
uci set firewall.@redirect[-1].dest='lan'
uci set firewall.@redirect[-1].proto='tcp'
uci set firewall.@redirect[-1].src_dport='80'
uci set firewall.@redirect[-1].dest_ip='2001:db8:1234:1::100'
uci set firewall.@redirect[-1].dest_port='80'
uci set firewall.@redirect[-1].family='ipv6'

uci commit firewall
/etc/init.d/firewall restart

Essential ICMPv6 Rules

OpenWrt includes essential ICMPv6 rules by default. Verify they're present:

# Check for ICMPv6 rules
uci show firewall | grep icmp

# Should include rules for:
# - echo-request/echo-reply (ping)
# - destination-unreachable
# - packet-too-big
# - time-exceeded
# - neighbour-solicitation/advertisement
# - router-solicitation/advertisement

If missing, add manually:

uci add firewall rule
uci set firewall.@rule[-1].name='Allow-ICMPv6-Input'
uci set firewall.@rule[-1].src='wan'
uci set firewall.@rule[-1].proto='icmp'
uci set firewall.@rule[-1].family='ipv6'
uci set firewall.@rule[-1].target='ACCEPT'

uci commit firewall
/etc/init.d/firewall restart

Dynamic Prefix Forwarding

OpenWrt supports dynamic prefix notation for IPv6 addresses that change when your delegated prefix changes:

# Forward to device with suffix ::123 within your delegated /64
uci set firewall.@redirect[-1].dest_ip='::123/-64'

# This automatically adjusts when your prefix changes

Advanced Configuration: Multiple VLANs

For segmented networks (Guest WiFi, IoT, etc.), you'll need to distribute IPv6 across multiple VLANs.

Requirements

Creating Additional Interfaces

Example: Guest Network on VLAN 10

LuCI Method:

  1. Network > Interfaces > Add new interface

    • Name: guest
    • Protocol: Static address
    • Device: Create or select VLAN device (e.g., eth0.10)

  2. IPv6 Settings:

    • IPv6 assignment length: 64
    • IPv6 assignment hint: 10 (uses subnet 10 from delegated prefix)
    • IPv6 suffix: ::1

  3. DHCP Settings (after saving):

    • Router Advertisement Service: server mode
    • DHCPv6 Service: server mode or hybrid

UCI Method:

# Create guest interface
uci set network.guest=interface
uci set network.guest.proto='static'
uci set network.guest.device='eth0.10'
uci set network.guest.ip6assign='64'
uci set network.guest.ip6hint='10'  # Use 10th /64 from delegated prefix

# Configure DHCP for guest network
uci set dhcp.guest=dhcp
uci set dhcp.guest.interface='guest'
uci set dhcp.guest.dhcpv6='server'
uci set dhcp.guest.ra='server'
uci set dhcp.guest.ra_management='1'

# Firewall zone for guest (restrict LAN access)
uci add firewall zone
uci set firewall.@zone[-1].name='guest'
uci set firewall.@zone[-1].network='guest'
uci set firewall.@zone[-1].input='REJECT'
uci set firewall.@zone[-1].output='ACCEPT'
uci set firewall.@zone[-1].forward='REJECT'

# Allow guest to WAN
uci add firewall forwarding
uci set firewall.@forwarding[-1].src='guest'
uci set firewall.@forwarding[-1].dest='wan'

uci commit
/etc/init.d/network restart
/etc/init.d/firewall restart

Verifying Multi-VLAN IPv6

# Check assigned prefixes per interface
ip -6 addr show

# Verify delegation status
ubus call network.interface.wan6 status | jq '.["ipv6-prefix-assignment"]'

# Test connectivity from each VLAN
ping6 -c 4 2001:4860:4860::8888

IPv6 Tunnels (Hurricane Electric 6in4)

If your ISP doesn't provide native IPv6, Hurricane Electric's free tunnel broker offers reliable IPv6 connectivity via 6in4 tunneling.

Prerequisites

Creating HE Tunnel

  1. Register at https://tunnelbroker.net
  2. Create Regular Tunnel:
    • Enter your public IPv4 address
    • Select tunnel endpoint close to you
  3. Note Configuration Details:
    • Server IPv4 Address
    • Client IPv6 Address
    • Routed /64 or /48 prefix

Configure 6in4 Tunnel via LuCI

  1. Network > Interfaces > Add new interface

    • Name: HE_6in4 (or wan6)
    • Protocol: IPv6-in-IPv4 (RFC4213)

  2. General Settings:

    • Local IPv4 address: Leave empty (auto-detected)
    • Remote IPv4 address: Enter HE Server IPv4 Address
    • Local IPv6 address: Enter HE Client IPv6 Address (e.g., 2001:470:xxxx:xxxx::2/64)
    • IPv6 routed prefix: Enter HE Routed /64 or /48 prefix

  3. Advanced Settings (optional):

    • MTU: 1480 (recommended for tunnels)
    • Tunnel ID: Your HE tunnel ID
    • Username/Password: For dynamic IP updates

  4. Firewall Settings:

    • Create firewall zone or assign to wan

UCI Method:

# Install 6in4 package if missing
opkg update
opkg install 6in4

# Configure tunnel
uci set network.henet=interface
uci set network.henet.proto='6in4'
uci set network.henet.peeraddr='216.66.80.26'  # HE server IPv4
uci set network.henet.ip6addr='2001:470:1234:5678::2/64'  # Your client IPv6
uci set network.henet.ip6prefix='2001:470:1234:5679::/64'  # Your routed prefix
uci set network.henet.mtu='1480'

# Optional: Dynamic IP update
uci set network.henet.tunnelid='123456'
uci set network.henet.username='your-he-username'
uci set network.henet.password='your-update-key'

# Firewall
uci set network.henet.firewall='wan'

uci commit network
/etc/init.d/network restart

Firewall Configuration for 6in4

# Allow protocol 41 (IPv6-in-IPv4) from HE endpoint
uci add firewall rule
uci set firewall.@rule[-1].name='Allow-HE-Tunnel'
uci set firewall.@rule[-1].src='wan'
uci set firewall.@rule[-1].proto='41'
uci set firewall.@rule[-1].src_ip='216.66.80.26'  # HE endpoint
uci set firewall.@rule[-1].target='ACCEPT'

uci commit firewall
/etc/init.d/firewall restart

Testing HE Tunnel

# Ping HE tunnel endpoint
ping6 -c 4 2001:470:1234:5678::1

# Ping external IPv6 address
ping6 -c 4 2001:4860:4860::8888

# Verify routing
traceroute6 ipv6.google.com

Troubleshooting Common Issues

Router Shows No IPv6 Address

Symptoms: WAN6 interface shows no global IPv6 address

Common Causes:

Solutions:

# Check WAN6 status
ifstatus wan6

# Monitor DHCPv6 client logs
logread | grep dhcpv6

# Try different protocol
uci set network.wan6.proto='dhcpv6'  # or 'static' or '6in4'
uci commit network
/etc/init.d/network restart

# Check if ISP assigns via SLAAC instead
ip -6 addr show dev eth0.2  # Check for global address

No Prefix Delegation Received

Symptoms: Router has IPv6 address but LAN devices don't get IPv6

Common Causes:

Solutions:

# Verify prefix delegation request
uci get network.wan6.reqprefix  # Should be 'auto', '56', '60', etc.

# Check odhcpd status
/etc/init.d/odhcpd status

# View logs for delegation
logread | grep -i prefix

# Manually set reqprefix
uci set network.wan6.reqprefix='56'
uci commit network
/etc/init.d/network restart

# Check received delegation
ubus call network.interface.wan6 status | grep -A5 ipv6-prefix

LAN Clients Don't Get IPv6 Addresses

Symptoms: Clients only have link-local (fe80::) addresses

Common Causes:

Solutions:

# Verify LAN IPv6 configuration
uci show dhcp.lan | grep -E 'dhcpv6|ra'

# Enable if missing
uci set dhcp.lan.dhcpv6='server'
uci set dhcp.lan.ra='server'
uci commit dhcp
/etc/init.d/odhcpd restart

# Check LAN has IPv6 prefix
ip -6 addr show dev br-lan

# Monitor RA broadcasts
tcpdump -i br-lan icmp6 and 'icmp6[0] == 134'  # Router Advertisements

# Test from client
# Windows: ipconfig /renew6
# Linux: dhclient -6 -r && dhclient -6

Can Ping IPv6 from Router but Not Clients

Symptoms: Router ping6 works, client devices cannot reach IPv6 internet

Common Causes:

Solutions:

# Check firewall forwarding
uci show firewall | grep -A3 lan

# Ensure forwarding allowed LAN -> WAN
uci set firewall.@forwarding[0].src='lan'
uci set firewall.@forwarding[0].dest='wan'
uci commit firewall
/etc/init.d/firewall restart

# Verify RA includes default route
uci get dhcp.lan.ra_default  # Should be '1'
uci set dhcp.lan.ra_default='1'
uci commit dhcp
/etc/init.d/odhcpd restart

# Check IPv6 forwarding enabled
sysctl net.ipv6.conf.all.forwarding  # Should be 1

IPv6 Connection Slow or Timing Out

Symptoms: IPv6 connectivity works but performance is poor

Common Causes:

Solutions:

# Test MTU
ping6 -c 4 -s 1452 2001:4860:4860::8888  # Should work
ping6 -c 4 -s 1500 2001:4860:4860::8888  # May fail

# Set lower MTU on WAN6 if needed
uci set network.wan6.mtu='1480'
uci commit network
/etc/init.d/network restart

# Ensure ICMPv6 type 2 (Packet Too Big) is allowed
ip6tables -L INPUT -v -n | grep icmpv6-type

# Check latency comparison
ping -c 10 8.8.8.8  # IPv4
ping6 -c 10 2001:4860:4860::8888  # IPv6

Firewall Blocking ICMPv6

Symptoms: No IPv6 connectivity or intermittent failures

Solutions:

# Check if ICMPv6 rules exist
uci show firewall | grep icmp

# Add ICMPv6 rule if missing
uci add firewall rule
uci set firewall.@rule[-1].name='Allow-ICMPv6'
uci set firewall.@rule[-1].src='wan'
uci set firewall.@rule[-1].proto='icmp'
uci set firewall.@rule[-1].family='ipv6'
uci set firewall.@rule[-1].target='ACCEPT'

uci commit firewall
/etc/init.d/firewall restart

Debugging Commands

# View all IPv6 addresses
ip -6 addr show

# View IPv6 routing table
ip -6 route show

# Monitor DHCPv6 activity
logread -f | grep dhcpv6

# Monitor odhcpd (RA, DHCPv6)
logread -f | grep odhcpd

# Check firewall6 status (firewall3)
ip6tables -L -v -n

# Check firewall status (firewall4)
nft list ruleset | grep ipv6

# Capture ICMPv6 traffic
tcpdump -i any -n icmp6

# Test DNS resolution over IPv6
nslookup -type=AAAA google.com 2001:4860:4860::8888

Testing Your IPv6 Configuration

After configuring IPv6, comprehensive testing ensures everything works correctly.

Command-Line Tests

Verify Router IPv6 Connectivity:

# Ping Google's IPv6 DNS
ping6 -c 4 2001:4860:4860::8888

# Ping Cloudflare
ping6 -c 4 2606:4700:4700::1111

# Traceroute to verify routing
traceroute6 ipv6.google.com

# DNS resolution test
nslookup -type=AAAA google.com

Check Interface Status:

# View all IPv6 addresses
ip -6 addr show

# Check WAN6 delegated prefix
ifstatus wan6 | grep -A5 ipv6-prefix

# View routing table
ip -6 route show

# Check LAN clients (from router)
ip -6 neigh show

Test from LAN Client

Windows:

# Show IPv6 configuration
ipconfig /all

# Test connectivity
ping -6 2001:4860:4860::8888

# Renew IPv6 address
ipconfig /renew6

macOS/Linux:

# Show IPv6 addresses
ifconfig  # macOS
ip -6 addr show  # Linux

# Test ping
ping6 2001:4860:4860::8888

# Traceroute
traceroute6 ipv6.google.com

Online Testing: test-ipv6.run

The most comprehensive test is using an online IPv6 testing tool.

Recommended: test-ipv6.run

  1. From a LAN client, navigate to https://test-ipv6.run

  2. The tool will automatically test:

    • IPv4-only connectivity
    • IPv6-only connectivity
    • Dual-stack connectivity
    • Protocol preference
    • IPv4 and IPv6 latency
    • DNS resolution over both protocols

  3. Expected Results:

    • Score: 10/10 - Perfect dual-stack configuration
    • IPv6 Address: Displays your global IPv6 address from delegated prefix
    • Dual Stack Test: Should pass (green)
    • IPv6 Latency: Should be comparable to IPv4

  4. Troubleshooting Results:

    • Score 0 (Red) with "Broken IPv6": IPv6 configured but timing out - check firewall
    • Score 0 "IPv4 Only": No IPv6 connectivity - verify WAN6 and prefix delegation
    • Partial failures: Review firewall rules and ICMPv6 configuration

Alternative Testing Sites

Verify Specific Services

If running servers, test IPv6 accessibility:

# Test SSH over IPv6 (from external host)
ssh -6 user@[2001:db8:1234:1::1]

# Test web server
curl -6 http://[2001:db8:1234:1::100]/

# Verify DNS AAAA records (if published)
dig AAAA yourdomain.com @8.8.8.8

Best Practices and Tips

Security Considerations

  1. Enable IPv6 firewall explicitly: Don't assume IPv4 firewall rules cover IPv6
  2. Never completely block ICMPv6: Your network won't function correctly
  3. Use ULA alongside global addresses: Provides stable local addressing
  4. Enable Privacy Extensions on clients: Rotates addresses for better privacy
  5. Monitor logs: Watch for unusual IPv6 traffic patterns

Performance Optimization

  1. Set appropriate MTU: 1480 for tunnels, 1500 for native
  2. Use Google/Cloudflare IPv6 DNS: Often faster than ISP DNS
    • Google: 2001:4860:4860::8888, 2001:4860:4860::8844
    • Cloudflare: 2606:4700:4700::1111, 2606:4700:4700::1001
  3. Request largest prefix available: More flexibility for VLANs
  4. Enable hardware offloading: If supported by your device

Maintenance

  1. Keep firmware updated: OpenWrt regularly improves IPv6 support
  2. Monitor prefix changes: Some ISPs rotate prefixes
  3. Test after ISP maintenance: Verify IPv6 remains functional
  4. Document configuration: Note custom settings for future reference
  5. Regular testing: Periodically verify with https://test-ipv6.run

Conclusion

OpenWrt provides exceptional IPv6 support with fine-grained control over every aspect of configuration. Whether you're setting up basic dual-stack connectivity via LuCI or deploying advanced multi-VLAN networks via UCI, OpenWrt's flexible architecture accommodates all scenarios.

Key takeaways:

With proper configuration, your OpenWrt router will provide robust dual-stack connectivity, future-proofing your network while maintaining compatibility with legacy IPv4 services. The combination of LuCI's user-friendly interface and UCI's powerful command-line control makes OpenWrt an ideal platform for both beginners and advanced users deploying IPv6.

For ongoing validation of your IPv6 configuration, regularly test your connectivity at https://test-ipv6.run to ensure optimal performance and catch any issues early.