Configuring Multi-WAN for IPv6

Configuration guides, troubleshooting and practical advice for AZTCOFW.

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Alternate Tactics

Some users prefer to configure LAN with a “private” IPv6 subnet from the fc00::/7 space and setup NPt for both WANs.

Caveats

In most cases, NAT is not used with IPv6 in any capacity as everything is routed. That is great for connectivity and for businesses or locations that can afford Provider Independent (PI) address space and a BGP peering,

Requirements

To setup Multi-WAN for IPv6 the firewall must have: IPv6 connectivity with static addresses on two or more WANs Gateways added to System > Routing for both IPv6 WANs, and confirmed connectivity on both. A routed /64 from

Setup

The setup for IPv6 Multi-WAN is very close to the setup for IPv4. The main difference is that it uses NPt instead of NAT. First, under System > Routing on the Gateway Groups tab, add Gateway Groups for the IPv6 gateways,