Jumpstart Winpcap (2026 Update)

: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")

# 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. jumpstart winpcap

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) :param interface: adapter name (None = auto select)

--- Starting capture --- Filter: tcp or udp or arp Max packets: 30 | Timeout: 15s jumpstart winpcap

# Print to console print(log_line.strip())

Enter adapter NAME from above (or press Enter for default): >

if not adapters: print("No WinPcap/Npcap adapters found. Install Npcap first.") sys.exit(1)