- base_pkt_a = Ether()/IP(src=p1_src_start_ip, dst=p1_dst_start_ip)
- base_pkt_b = Ether()/IP(src=p2_src_start_ip, dst=p2_dst_start_ip)
+ base_pkt_a = Ether()/IP(src=p1_src_start_ip, dst=p1_dst_start_ip, proto=61)
+ base_pkt_b = Ether()/IP(src=p2_src_start_ip, dst=p2_dst_start_ip, proto=61)