1.2 KiB
1.2 KiB
protomask
A user space NAT64 implementation.
Protomask started as a challenge to create a NAT64 implementation in a weekend. The goal of this implementation is to keep things simple. There aren't many knobs to tweak, so if you want to do stateful NAT or source address filtering, put something like iptables in front of it.
Configuration
Protomask uses a TOML configuration file. Here is a functional example:
[Interface]
# A list of IPv4 prefixes to map traffic to
Pool = ["44.31.119.0/24"]
# The IPv6 prefix to listen for traffic on (should generally be the well-known 64:ff9b::/96 prefix)
Prefix = "64:ff9b::/96"
[Rules]
# A static mapping of IPv4 and IPv6 addresses
# These addresses will be exclusively reserved, and not used in the general pool
MapStatic = [{ v4 = "192.0.2.2", v6 = "2001:db8:1::2" }]