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IPv6 in OPNsense

· One min read

WAN​

  • IPv6 Configuration Type: Usually DHCPv6
  • Some ISP only issue /64 prefix if client does not send IPv6 prefix hint
  • Some ISP only issue /64 prefix, even client sends IPv6 prefix hint (Ex: CTM)

LAN​

  • IPv6 Configuration Type: Track Interface
  • Track IPv6 Interface ▶ IPv6 Interface: WAN interface
  • If manual setting DHCPv6 / Router Advertisements is required, enable Manual configuration

Manual setting DHCPv6 / Router Advertisements​

  • Services ▶ DHCPv6
  • Services ▶ Router Advertisements
    • Set Router Advertisements to suitable option

Using NPTv6​

  • Interfaces ▶ LAN
    • IPv6 Configuration Type: Static IPv6
    • Static IPv6 configuration:
      • IPv6 address: Choose a /64 prefix in fd00::/8, Ex: fd00::/64
  • Firewall ▶ NAT ▶ NPTv6 ▶ +
    • Interface: WAN
    • Internal IPv6 Prefix: the LAN prefix fd00::/64