in internal/ip/ip.go [300:309]
func getIPHeaderLayerV6(tos DSCPValue, tcpLen uint16, srcIP net.IP, dstIP net.IP) *layers.IPv6 {
return &layers.IPv6{
Version: 6, // IP Version 6
TrafficClass: uint8(tos),
Length: tcpLen,
NextHeader: layers.IPProtocolTCP,
SrcIP: srcIP,
DstIP: dstIP,
}
}