TCP timestamp echo replay 是国内没有服务器支持还是说运营商吃掉了? - V2EX
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jcyangzh

TCP timestamp echo replay 是国内没有服务器支持还是说运营商吃掉了?

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  •   jcyangzh Jan 9, 2021 1585 views
    This topic created in 1937 days ago, the information mentioned may be changed or developed.

    连 google 是有的

    Flags [S], seq 1444775901, win 28400, options [mss 1420,sackOK,TS val 2659880197 ecr 0,nop,wscale 7], length 0 Flags [S.], seq 513709901, ack 1444775902, win 65535, options [mss 1420,sackOK,TS val 2034712621 ecr 2659880197,nop,wscale 8], length 0

    连 baidu/qq/weibo 都没有 12:26:43.689896 IP 192.168.222.10.53798 > 61.241.54.232.http: Flags [S], seq 2072687621, win 65535, options [mss 1460,nop,wscale 6,nop,nop,TS val 971329212 ecr 0,sackOK,eol], length 0 12:26:43.708426 IP 61.241.54.232.http > 192.168.222.10.53798: Flags [S.], seq 2586583585, ack 2072687622, win 29200, options [mss 1440,nop,nop,sackOK,nop,wscale 7], length 0

    有老哥熟悉这块嘛？

  • nop
  • seq
  • mss
  • wscale
    2 replies    2021-01-09 17:56:23 +08:00
    patrickyoung
        1
    patrickyoung  
       Jan 9, 2021 via iPhone
    net.ipv4.tcp_timestamps=0
    jcyangzh
        2
    jcyangzh  
    OP
       Jan 9, 2021
    @patrickyoung 感谢，这里的意思是应该是中间的路由器设置了这个，导致把这个 option 吃掉了?
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