from scapy.all import rdpcap, TCP, UDP, ICMP, ARP

packets = rdpcap("ultimate.pcapng")
protocols = {"TCP": TCP, "UDP": UDP, "ICMP": ICMP, "ARP": ARP}

stats = {name: 0 for name in [*protocols, "Others"]}

for packet in packets:
    for name, layer in protocols.items():
        if packet.haslayer(layer):
            stats[name] += 1
            break
        stats["Others"] += 1

print("Répartition par protocole")
for proto, count in stats.items():
    if count > 0:
        print(f"{proto:6} : {count} paquets.")