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huangya

Linux 有什么参数限制 nat session 数目吗?

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  •   huangya Nov 21, 2022 1902 views
    This topic created in 1253 days ago, the information mentioned may be changed or developed.
    我使用的是 openwrt x86 发行版。版本是 22.03 。内核是 5.10.146 。现在在用 udp 做实验(因为 tcp 是有连接的,似乎用专业工具才比较好测试),发现 udp session 似乎被限制在 28000 左右。nf_contrack_max 被我改成了 64000.

    root@OpenWrt:/proc/5398/net# cat /proc/sys/net/nf_conntrack_max
    64000
    root@OpenWrt:/proc/5398/net# wc -l /proc/net/nf_conntrack
    28615 /proc/net/nf_conntrack
    5 replies    2022-12-06 09:34:22 +08:00
    swulling
        1
    swulling  
       Nov 22, 2022 via iPhone
    我记得是 net.netfilter.nf_conntrack_max 吧,不晓得和 net.nf_conntrack_max 有什么区别,你可以查看下
    swulling
        2
    swulling  
       Nov 22, 2022 via iPhone
    @swulling 查了下是一样的,忽略。
    lairdnote
        3
    lairdnote  
       Nov 22, 2022
    调整 sysctl
    huangya
        4
    huangya  
    OP
       Nov 22, 2022
    @lairdnote 能否明确告知是哪个? net.netfilter.nf_conntrack_max 和 net.netfilter.nf_conntrack_buckets 我都试了,没有用
    Boxjan
        5
    Boxjan  
       Dec 6, 2022 via Android
    port range 呢
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