from trex_stl_lib.api import * class STLS1(object): def create_stream (self): # Teredo Ipv6 over Ipv4 pkt = Ether()/IP(src="16.0.0.1",dst="48.0.0.1")/UDP(dport=3797,sport=3544)/IPv6(dst="2001:0:4137:9350:8000:f12a:b9c8:2815",src="2001:4860:0:2001::68")/UDP(dport=12,sport=1025)/ICMPv6Unknown() vm = CTRexScRaw( [ # tuple gen for inner Ipv6 STLVmTupleGen ( ip_min="16.0.0.1", ip_max="16.0.0.2", port_min=1025, port_max=65535, name="tuple"), # define tuple gen STLVmWrFlowVar (fv_name="tuple.ip", pkt_offset= "IPv6.src",offset_fixup=12 ), # write ip to packet IPv6.src to LSB STLVmWrFlowVar (fv_name="tuple.port", pkt_offset= "UDP:1.sport" ) #write udp.port (after ipv6) ] ) # burst of 100 packets return STLStream(packet = STLPktBuilder(pkt = pkt ,vm = vm), mode = STLTXSingleBurst( pps = 1, total_pkts = 17) ) def get_streams (self, direction = 0): # create 1 stream return [ self.create_stream() ] def register(): return STLS1()