[问] 如何探测局域网里一个路由器背后有几个设备? - V2EX
venompool88

[问] 如何探测局域网里一个路由器背后有几个设备?

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  •   venompool88 Dec 8, 2024 via Android 2451 views
    This topic created in 519 days ago, the information mentioned may be changed or developed.
    假设我的局域网网段是 192.168.1.0/24 ,现在我的局域网里面接入的一个家庭路由器,它的 IP 地址是 192.168.1.33 ,这个路由器是 nat4 ,那我怎么才能探测到他背后有几个设备呢
    8 replies    2024-12-09 11:04:11 +08:00
    fukhak
        1
    fukhak  
       Dec 8, 2024 via iPhone
    路由看 arp 表不就知道多少了。。。另外端口像和捉播包
    fano
        2
    fano  
       Dec 8, 2024
    Tethering Detection 。tcpdump 抓包,看这个 IP 上不同 TTL 或 HTTP User Agent 的数量。
    burbon1006
        3
    burbon1006  
       Dec 8, 2024 via Android
    nmap ?
    Soo0
        4
    Soo0  
       Dec 8, 2024 via iPhone
    ntp 包指纹特征 很多都可以
    yyzh
        5
    yyzh  
       Dec 8, 2024 via Android
    这点那些搞高校网络的公司应该都有成熟的技术了吧.好像是什么 DPI 检测的
    Ipsum
        6
    Ipsum  
       Dec 9, 2024
    Win 可以用报头序号连续性探测,linux 就算了。
    luoyide2010
        7
    luoyide2010  
       Dec 9, 2024
    TTL ,IPID ,TCP 端口,Window Size ,时间戳,TCP ISN 等,多种方法交叉判断
    luoyide2010
        8
    luoyide2010  
       Dec 9, 2024
    这是锐捷对检查原理的简单说明,可以参考下 https://search.ruijie.com.cn:8902/kc/rqs/#/d/2018091820582600151
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