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whoami9894

lsp 协议联网异常的问题

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  •   whoami9894 Jun 30, 2018 via Android 3240 views
    This topic created in 2862 days ago, the information mentioned may be changed or developed.

    一个同学电脑不能联网,症状如下

    • 浏览器访问时显示该页无法显示
    • dhcp,dns 正常
    • ping 网关能 ping 通
    • ping 外网 ip 能 ping 通
    • 浏览器直接输入 baidu.com 的 ip 也显示异常
    • 所有应用无法联网,包括 uwp
    • 重装 tcp ip 协议依旧异常

    用了 360 急救箱诊断是 lsp 协议异常,网上查了下 lsp 是操作系统的套接字接口。

    奇怪的是既然 lsp 异常为什么会出现 ping 外网 ip 正常的情况

    1 replies    2018-07-19 09:57:00 +08:00
    verbs2016
        1
    verbs2016  
       Jul 19, 2018   1
    如果是 LSP 劫持的话,解方法很简单,打开 cmd 或 powershell 执行: netsh winsock reset catalog 即可。

    关于你的疑问的为什么 ping 是正常的, 这个原因的 ping 用的是 ICMP 协议,而 ICMP 协议是网络层协议,一般 LSP 劫持都是传输层协议(UDP/TCP),所以可以正常 ping。

    PS:
    1. 个人感觉 LSP 不能称称为协议,应该是一种说是一种技术更合适吧,全称是 Layered Service Provider,功能是微软提供的 SPI 接口,可过滤网络数据包等。
    2. 由于本人能力能限,欢迎大神拍砖。
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