def _makeHeaderIPv6(sig=V2_SIGNATURE, verCom='!', famProto='!', addrLength='\x00$', addrs=((('\x00' * 15) + '\x01') * 2), ports='\x1f\x90"\xb8'):
 return (((((sig + verCom) + famProto) + addrLength) + addrs) + ports)

def _makeHeaderIPv6 ( sig = V2_SIGNATURE , verCom = '!' , famProto = '!' , addrLength = '\x00$' , addrs = ( ( ( '\x00' * 15 ) + '\x01' ) * 2 ) , ports = '\x1f\x90"\xb8' ) : return ( ( ( ( ( sig + verCom ) + famProto ) + addrLength ) + addrs ) + ports )
construct a version 2 ipv6 header with custom bytes .