The static map defines options which control the interpretation of the static_host_map.
Select the IP version used to communicate with hosts in the static map. Valid values are
In general, this should be left as the default value
ip4 to avoid issues communicating with IPv4-only hosts.
Lighthouses learn each node's IP addresses by looking at the source address of incoming packets as well as the self-reported addresses sent by the node. Because most devices are behind a NAT of some sort (e.g. a network router) they cannot self-report their public IPv4 address. By contacting the Lighthouse via its IPv4 address, the Lighthouse is able to learn the node's public IPv4 address.
It is necessary to set this setting to
ip) for IPv6-only hosts.
Interval to re-query DNS for hostnames listed in the static map
Timeout for DNS lookup of static hosts