IPv6 SD-WAN with multiple FttH ISPs -> PPPoE with DHCP-PD

Forum|Forum|11 months ago
July 10, 2025
2 replies
408 views

Anybody doing any multiple ISPs with DHCP-PD for IPv6 and SD-WAN with failover and NATting on the fother PPPoE + DHCP-PD interface?

Seems that 7.6.3 don't have NAT66 options (or I'm blind) and the "problem" is that my WAN/ppp interfaces don't have IPv6 IPs assigned from the PPPoE/DHCP and the gateways are the link-local FE80::1 IPs

Looking for more/detail information to peruse on the FortiGate 7.6.x to configure... or is there a IPv6 "working group" I could join to assist in test case debugging?

nevan

Staff

Dear @hvisage1,

Please check the admin guide FortiOS version 7.6.3, it supports the NAT66.

https://docs.fortinet.com/document/fortigate/7.6.3/administration-guide/245279

Also, checked in the lab firewall though not having the same setup or not having any PPP WAN, but NAT66 is supported and the feature is there for the version 7.6.3 on the VM unit.

BR.

// Kindness is the Key //

hvisage1Author

Visitor III

Thank you, missed those, will re-recheck

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