Openwrt 导致广播风暴 - V2EX
OpenWrt 是一个专门面向嵌入式设备的 Linux 发行版。你可以将 OpenWrt 支持的型号的嵌入式设备,比如各种路由器上的系统,换成一个有更多可能性可以折腾的 Linux 系统。
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IAPYANG

Openwrt 导致广播风暴

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  •   IAPYANG Mar 23, 2022 3451 views
    This topic created in 1512 days ago, the information mentioned may be changed or developed.
    这两天遇到个奇葩问题,r2s ( Openwrt 固件,做旁路由 )接交换机就会导致整个局域网断掉,所有地址 ping 不通,但是直接接 AP 又没啥问题,大佬们有没有啥排查方向?
    11 replies    2022-06-10 22:34:11 +08:00
    IAPYANG
        1
    IAPYANG  
    OP
       Mar 23, 2022
    DHCP 已关,真正作为旁路由,实在不理解为啥一个客户端能造成局域网的奔溃
    IAPYANG
        2
    IAPYANG  
    OP
       Mar 23, 2022
    最不能理解的是为啥加了个傻瓜交换机就会这样,难道是 AP 之间成环了?
    rockyzhang
        3
    rockyzhang  
       Mar 23, 2022
    形成了环路,dump swtich 没有 Spanning Tree/Rapid Spanning Tree 的协议?
    IAPYANG
        4
    IAPYANG  
    OP
       Mar 23, 2022
    @rockyzhang 那是要 openwrt 里开下 stp?
    mortal
        5
    mortal  
       Mar 23, 2022
    说个文不对题的,之前我家 SONY 电视只要一接上有线就风暴,全家断网。我还很好奇一个电视难道有 DHCP ?
    后来看网上说,很多人这样,因为有线无线同时连接了,导致了环路。令我对大法深深感到佩服。
    rpish
        6
    rpish  
       Mar 23, 2022
    @IAPYANG 怎样老哥,解决了吗?
    flynaj
        7
    flynaj  
       Mar 23, 2022 via Android
    开机运行里面 运行 ifup br-lan
    NewYear
        8
    NewYear  
       Mar 24, 2022
    1.画拓扑图
    2.抓包
    3.发帖
    NewYear
        9
    NewYear  
       Mar 24, 2022   1
    @mortal

    这个电视机的处理方式不对,它把自己的无线接口和有线接口桥接了,这种方式简直就是找死,难道在测试阶段从来没有测试过有线和无线同时连接的么。正常操作是不桥接,作为两个单独的接口,然后出口优先走 A 还是优先走 B ,环路是不可能环路的,一辈子都不可能环路。
    IAPYANG
        10
    IAPYANG  
    OP
       Apr 6, 2022
    @rpish 解决了,换了个交换机,确实那个交互机有问题,更深层次的原因我已经不想折腾了
    ShuA1
        11
    ShuA1  
       Jun 10, 2022
    多半是回环了
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