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OPNsense

OPNsense is a software firewall system based on FreeBSD developed by Deciso B.V. It originally started as a fork of pfsense but is developed independently based on upstream FreeBSD changes.

Support

  • IPv4 only: full support
  • Dual-Stack: full support
  • DS-Lite: partly supported with manual configuration for now
  • PCP Support: not available

DS-Lite Support

OPNsense can support DS-Lite tunnels with manual creation of the tunnel and route. The MTU should be set to 1460.

ifconfig gif0 create
ifconfig gif0 inet6 tunnel <<LOCAL IPv6 ADDRESS>> <<AFTR ADDRESS>> mtu 1460 -accept_rtadv ifdisabled
ifconfig gif0 inet 192.0.0.2 192.0.0.1 netmask 255.255.255.248
route add default -interface gif0

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