了解了，感谢。 Liang Guo <[email protected]> 于2020年3月19日周四 下午4:22写道：
> 发给zerotier网卡的包经过包装后才发给物理网卡，所以你在物理网卡上看不到icmp报文，但是能看到其他报文 > > On Thu, Mar 19, 2020 at 12:33 PM 李洛 <[email protected]> wrote: > > > > 各位，最近在折腾内网穿透的事情并且使用过zerotier，然后有个疑问就是Linux如何通过zerotier这个虚拟网卡将报文传递出去的. > > > 假设某台Linux服务器为A并且仅通过一条网线与路由器相连接，假设这个物理网卡为eth0，IP地址为10.10.10.200，并且zerotier新增的虚拟网卡为eth1，IP地址为192.168.111.100（仅举例） > > 此时我通过zerotier的虚拟IP去ping其他zerotier节点的IP，假设为192.168.111.101，那么我tcpdump -i > eth1抓eth1网卡时是可以看到icmp的request和reply报文的，但是我tcpdump -i > eth0这个真实的物理网卡确实看不到icmp报文的。 > > > 我的疑问是既然这台Linux服务器只有一个物理网卡，那么网络流量肯定是走这个物理网卡eth0出去的，但是为何tcpdump看不到这个icmp报文呢? > > > > > > -- > > All the best! > > > > -- > > -- You received this message because you are subscribed to the Google > Groups Shanghai Linux User Group group. To post to this group, send email > to [email protected]. To unsubscribe from this group, send email to > [email protected]. For more options, visit this group at > https://groups.google.com/d/forum/shlug?hl=zh-CN > > --- > > 您收到此邮件是因为您订阅了Google网上论坛上的“Shanghai Linux User Group”群组。 > > 要退订此群组并停止接收此群组的电子邮件，请发送电子邮件到[email protected]。 > > 要在网络上查看此讨论，请访问 > https://groups.google.com/d/msgid/shlug/CACb3DvPenXf_BagkDYK2qHotXfrqqj6Qc0p7udo-ZuPEtZb3mg%40mail.gmail.com > 。 > > > > -- > Liang Guo > > -- > -- You received this message because you are subscribed to the Google > Groups Shanghai Linux User Group group. To post to this group, send email > to [email protected]. To unsubscribe from this group, send email to > [email protected]. For more options, visit this group at > https://groups.google.com/d/forum/shlug?hl=zh-CN > --- > 您收到此邮件是因为您订阅了 Google 网上论坛的“Shanghai Linux User Group”群组。 > 要退订此群组并停止接收此群组的电子邮件，请发送电子邮件到[email protected]。 > 要在网络上查看此讨论，请访问 > https://groups.google.com/d/msgid/shlug/CAJwrgW7RFqrczQK0%2BJU40Oyf4rPL9VzPSrgnOJzhGb9KqpRsXg%40mail.gmail.com > 。 > -- All the best! http://luolee.me -- -- You received this message because you are subscribed to the Google Groups Shanghai Linux User Group group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at https://groups.google.com/d/forum/shlug?hl=zh-CN --- 您收到此邮件是因为您订阅了 Google 网上论坛的“Shanghai Linux User Group”群组。 要退订此群组并停止接收此群组的电子邮件，请发送电子邮件到[email protected]。 要在网络上查看此讨论，请访问 https://groups.google.com/d/msgid/shlug/CACb3DvNxvfUZCnba5kp1OnR3zp62_5RKKjC%3DhTN0UXa3ZqDrrw%40mail.gmail.com。
