# send ICMPv6 echo request with incremented data length and receive ICMPv6
# echo reply
- for echo_seq in range(start_size, end_size, step):
+ for echo_seq in range(start_size, end_size+1, step):
pkt_send = (Ether(src=src_mac, dst=dst_mac) /
IPv6(src=src_ip, dst=dst_ip) /
ICMPv6EchoRequest(id=echo_id, seq=echo_seq,