NAT64 is on unless the user-data sets nat64: false. Jool translates 64:ff9b::/96 to IPv4.

To use it:

  • turn on Route 53 Resolver DNS64 on the IPv6 subnets;
  • add a 64:ff9b::/96 route to the instance;
  • give the instance’s ENI an IPv6 address.

Jool’s default IPv4 pool is ports 61001-65535 of the instance’s address. Keep ip_local_port_range below that.

The Jool modules are built against natkit’s kernel (Jool 4.1.15).

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Last updated 13 Nov 2026, 13:02 -0300. history