try: sniff( iface=interface, count=packet_count, timeout=timeout_sec, filter=filter_str, prn=packet_callback, store=False ) except KeyboardInterrupt: print("\nCapture stopped by user.") except PermissionError: print("\nERROR: Run as Administrator to capture packets.") sys.exit(1) except Exception as e: print(f"\nERROR: e") if "No device exists" in str(e): print("Hint: Check adapter name or install Npcap/WinPcap.") sys.exit(1)
def packet_callback(packet): """Process each captured packet.""" timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f")[:-3] summary = packet.summary() log_line = f"[timestamp] summary\n"
--- Starting capture --- Filter: tcp or udp or arp Max packets: 30 | Timeout: 15s jumpstart winpcap
# Save to log file with open("packet_log.txt", "a") as log: log.write(log_line) def start_capture(interface=None, packet_count=20, timeout_sec=10, filter_str="tcp or udp or arp"): """ Capture packets with optional filter.
:param interface: adapter name (None = auto select) :param packet_count: stop after N packets :param timeout_sec: stop after N seconds :param filter_str: BPF filter (e.g., "tcp", "udp", "arp", "icmp") """ print(f"\n--- Starting capture ---") print(f"Filter: filter_str") print(f"Max packets: packet_count | Timeout: timeout_secs") print("Press Ctrl+C to stop early\n") try: sniff( iface=interface
print("\n--- Capture finished ---") print("Log saved to: packet_log.txt") if == " main ": # Step 1: Show adapters adapters = list_adapters()
""" Jumpstart WinPcap Feature: Live Packet Monitor & Logger Captures packets, filters by protocol, saves summary to file. """ from scapy.all import sniff, get_windows_if_list from datetime import datetime import sys filters by protocol
Enter adapter NAME from above (or press Enter for default): >
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