listen sets the UDP port Nebula will use for sending/receiving traffic and for handshakes.
host is the ip of the interface to use when binding the listener. The default is
0.0.0.0 for all IPv4 interfaces. To
enable IPv6, use
host may also contain a hostname.
port is the UDP port nebula should use on a host. For a lighthouse node, the port should be defined, conventionally to
4242, however using port 0 or leaving
port unset will dynamically assign a port and is recommended for roaming
nodes. Using 0 on lighthouses and relay hosts will likely lead to connectivity issues.
Sets the max number of packets to pull from the kernel for each syscall (under systems that support
Configure socket buffers for the udp side (outside), leave unset to use the system defaults. Values will be doubled by
the kernel. Default is
/proc/sys/net/core/rmem_default). Maximum is limited by memory in the system,
used to avoid having to raise the system wide max,