RTNETLINK answers: Network is unreachable

这个错误通常是由于对应的网卡没有启动或者没有正确配置路由表所导致的。你可以通过检查网卡是否启动以及路由表是否正确配置来解决这个问题。另外，你也可以使用ip命令来调试路由问题，通过ip route get命令来确定一个数据包所走的路由。如果路由表没有正确配置，你可以使用ip route add命令来添加正确的路由。

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rtnetlink answers: network is unreachable

rtnetlink答复：网络不可达

这个错误信息通常表示网络连接出现了问题，可能是由于网络配置错误、网络故障或其他原因导致的。建议检查网络设置，确保网络连接正常，并尝试重新启动网络服务或设备。如果问题仍然存在，请联系网络管理员或技术支持寻求帮助。

ar 26 19:33:19 node2 NetworkManager[6138]: <info> [1679884399.3820] audit: op="connec Mar 26 19:33:19 node2 network[9176]: Bringing up interface ens33: Error: Connection ac Mar 26 19:33:19 node2 network[9176]: [FAILED] Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 network[9176]: RTNETLINK answers: File exists Mar 26 19:33:19 node2 systemd[1]: network.service: control process exited, code=exited Mar 26 19:33:19 node2 systemd[1]: Failed to start LSB: Bring up/down networking. -- Subject: Unit network.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit network.service has failed. -- -- The result is failed. Mar 26 19:33:19 node2 systemd[1]: Unit network.service entered failed state. Mar 26 19:33:19 node2 systemd[1]: network.service failed. Mar 26 19:33:19 node2 polkitd[6083]: Unregistered Authentication Agent for unix-process

:9170:594542 (system bus name :1.30, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)