libnetwork/portallocator/portallocator_unix.go
//go:build !windows
package portallocator
const (
// defaultPortRangeStart indicates the first port in port range
defaultPortRangeStart = 49153
// defaultPortRangeEnd indicates the last port in port range
// consistent with default /proc/sys/net/ipv4/ip_local_port_range
// upper bound on linux
defaultPortRangeEnd = 65535
)