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var data={alert:{show:false,color:'success',text:'',timeout:0,},theme:{dark:false,},nav:{showDrawer:false,showTOC:true,tocPanel:0,tab:'account',post:{discussionId:6416,currentPage:1,targetPage:1,total:15,anchor:0,goToOptions:{container:null,duration:0,easing:'easeInOutCubic',offset:-100,},worker:null,task:[],active:[],apiLock:[],originLike:new Map([]),},related:{block:1,}},search:{width:80,text:null,loading:false,},tags:[{id:15,url:'/t/0f074b236a045c7665770f3a1528',name:'软路由',color:'#66BB6A',icon:'mdi-router-wireless-settings',},],posts:[{id:77009,num:0,uid:13598,content:'\u003Cp\u003E大佬们好，我家有个 NAS ，放在书房。因为光猫在玄关，只有一条线到客厅，书房没有条件接有线，所以得用 AP 中继过去，NAS 再接上 AP 。\u003C/p\u003E\u003Cp\u003E以前是用的光猫拨号，OpenWRT 做旁路用科学插件，然后 K2p 在书房做 AP 中继，NAS 再接 K2p ，这个方案家里需要翻墙的设备网关改成旁路就行了，一直都没啥问题，NAS 接在 AP 上也能正常科学。\u003C/p\u003E\u003Cp\u003E但是，最近发现电信会悄悄上行速度，而且光猫性能很差，上行只能跑个 10Mbps 左右，所以选择从光猫拨号改成了路由拨号，形成了左边这个拓扑图。但是在这个拓扑结构下，设置网关为旁路的设备不能上网，但是旁路又能 ping 通外网，折腾了两天了，没弄好。不知道是不是因为我拨号的路由是 OP ，旁路装在 PVE 里，又是接的中继，导致网络环境太复杂了？\u003C/p\u003E\u003Cp\u003E所已打算换成右边这种拓扑结构，用 WMA301 拨号，刷了 OP 的 AX1800 放在书房做 AP+旁路的功能，不知道可以吗\u003C/p\u003E\u003Cp\u003E或者在这个条件下我该怎么部署网络结构呢？\u003C/p\u003E\u003Cp\u003E\u003Cimg alt\u003D\"image\" src\u003D\"https://files.catbox.moe/447eyj.png\"\u003E\u003C/p\u003E',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 12:01:12',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77010,num:1,uid:12215,content:'设置网关为旁路的设备 你做个 tracert 到一个外网 ip 地址看看断哪了，图上看着理论上是可以通的。  PVE 没用过 你看看有没针对虚拟网卡的安全设置。    ESXI 有个混杂模式，PVE 不知道有没有。',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 12:26:18',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77011,num:2,uid:5726,content:'猜一个原因，左边那个网络接口，设置旁路由为网关的设备，数据包去程和回程不一致，去程的数据包是 设备 -\u0026gt; 旁路由 -\u0026gt; 主路由 -\u0026gt; 目标服务器 路径，回程的数据包是  目标服务器 -\u0026gt; 主路由 -\u0026gt; 设备 的路径，主路由发现数据包对不起来会进行丢包处理（有的路由器就不会）。可以用 tcpdump 去主路由上抓一下包看看是卡在哪儿了\u003Cbr\u003E\u003Cbr\u003E解决的话两种，一个是在旁路由做 nat ，去程和回程一致了，另一种方式是关掉主路由的 rpf',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 12:48:08',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77012,num:3,uid:13598,content:'右边这个方式行得通吗。',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 12:58:38',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77013,num:4,uid:13598,content:'我尝试过关掉 PVE 的防火墙功能，但是好像做不用不大。',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 12:59:17',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77014,num:5,uid:6622,content:'最省事的方法，沿着踢脚线从弱电箱走线到书房，关键词 “隐形光纤”',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 13:41:31',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77015,num:6,uid:14214,content:'如 2 楼所说，左边是因为来回路径不一致，两段网关 1.1 有问题；换个网段互相指路由就能打通，或者旁路由做 nat 。右边方案没问题。',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:11:49',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77016,num:7,uid:13598,content:'我昨天试着在旁路里增加 NAT 规则，重写，但是还是不行。',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:16:44',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77017,num:8,uid:2852,content:'不能吧 旁路由转发时会修改 Saddr ， 主路由眼里就是旁路由来的数据。回程的时候也发给旁路由（个人理解）\u003Cbr\u003E\u003Cbr\u003E我觉得问题是 PVE 的虚拟交换机是不是有用户隔离什么的（毕竟我也没用过）\u003Cbr\u003E另外本来觉得是 dns 的问题，但是应该只是外网网站上不去，baidu 上不去那就不是 dns 问题。\u003Cbr\u003E\u003Cbr\u003E退一万步说，实践中我觉得有问题的 一般都是没问题的\u003D \u003D\u003Cbr\u003E\u003Cbr\u003E另外直接 AX1800 拨号+代理+wifi 多好，all in boom',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:25:02',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77018,num:9,uid:2852,content:'另外确定 openwrt 旁路由的设置一定是好的吗？',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:27:10',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77019,num:10,uid:14214,content:'主路由有 wrt 直接翻了，下面还搞个 wrt 做咩？ pve 能出互联网，走 ax wrt 翻就行了吧',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:27:33',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77020,num:11,uid:5726,content:'右边这个中继具体是怎么做的呢，两个不同网段吗',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:30:04',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77021,num:12,uid:869,content:'图文对半天对不上， 正常也是左边放之前的图，右边放改了后的图吧，看半天，其实只放图就好了，字不对打这么多，代词还和图对不太上，\u003Cbr\u003E\u003Cbr\u003E如果左边这个图的飞牛 os 是你的 nas ， 那他同时连了无线和有线， 无线的网络跳数必然比有线的小，于是路由始终走有线的路由',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:40:48',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77022,num:13,uid:869,content:'window 下用 tracert ，linux 下用 traceroute ， 看看路由怎么跳转的\u003Cbr\u003E路由没问题再查 dns',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:43:19',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:77023,num:14,uid:5726,content:'你说得也是对的，如果数据包经过旁路由的某些神奇软件处理，SADDR 会被修改成旁路由自己，如果是国内 IP 或者没经过某些神奇软件再或者配置的有问题，此时旁路由只转发数据包，就会造成非对称路由，结合他旁路由和主路由不同的情况，就有可能造成客户端上不了网。',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 16:56:25',updatedAt:'2025-03-26 13:49:15',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},],usersMap:new 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