![无法通过以太网访问路由器](https://linux22.com/image/943673/%E6%97%A0%E6%B3%95%E9%80%9A%E8%BF%87%E4%BB%A5%E5%A4%AA%E7%BD%91%E8%AE%BF%E9%97%AE%E8%B7%AF%E7%94%B1%E5%99%A8.png)
在使用 Live 启动尝试 Ubuntu 20.04.3 后,我决定完全从 Windows 切换。然而,安装 Ubuntu 后,我意识到到路由器的以太网连接不再工作,请注意,虽然 Windows 10 仍安装,并且使用 Live 启动时一切都运行正常。如果不设置静态 IP 地址,我会收到错误Activation of network connection failed.
当我设置静态 IP 并 ping 我的路由器时,我会得到以下输出:
$ ping 192.168.178.1
PING 192.168.178.1 (192.168.178.1) 56(84) bytes of data.
From 192.168.178.61 icmp_seq=1 Destination Host Unreachable
在我的路由器和我的电脑之间有一个 D-Link DGS-105 LAN 交换机,我认为这是导致这个问题的原因。
运行以下命令我得到以下输出:
$ sudo lshw -C network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: enp4s0
version: 0c
serial: b4:2e:99:19:41:be
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.11.0-43-generic duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:34 ioport:f000(size=256) memory:fe600000-fe600fff memory:f0300000-f0303fff
*-network
description: Wireless interface
physical id: 1
bus info: usb@1:4
logical name: wlx503eaa82fc4f
serial: 50:3e:aa:82:fc:4f
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=mt76x0u driverversion=5.11.0-43-generic firmware=N/A ip=192.168.178.61 link=yes multicast=yes wireless=IEEE 802.11
$ sudo resolvectl status
Global
LLMNR setting: no
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNSSEC NTA: 10.in-addr.arpa
16.172.in-addr.arpa
168.192.in-addr.arpa
17.172.in-addr.arpa
18.172.in-addr.arpa
19.172.in-addr.arpa
20.172.in-addr.arpa
21.172.in-addr.arpa
22.172.in-addr.arpa
23.172.in-addr.arpa
24.172.in-addr.arpa
25.172.in-addr.arpa
26.172.in-addr.arpa
27.172.in-addr.arpa
28.172.in-addr.arpa
29.172.in-addr.arpa
30.172.in-addr.arpa
31.172.in-addr.arpa
corp
d.f.ip6.arpa
home
internal
intranet
lan
local
private
test
Link 3 (wlx503eaa82fc4f)
Current Scopes: DNS
DefaultRoute setting: yes
LLMNR setting: yes
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
Current DNS Server: 192.168.178.1
DNS Servers: 192.168.178.1
DNS Domain: ~.
fritz.box
Link 2 (enp4s0)
Current Scopes: none
DefaultRoute setting: no
LLMNR setting: yes
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
$ cat /etc/netplan/01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
$ cat /usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf
[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma
$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether b4:2e:99:19:41:be brd ff:ff:ff:ff:ff:ff
inet 192.168.178.61/24 brd 192.168.178.255 scope global noprefixroute enp4s0
valid_lft forever preferred_lft forever
inet6 fe80::5254:585a:126:51dc/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: wlx503eaa82fc4f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 50:3e:aa:82:fc:4f brd ff:ff:ff:ff:ff:ff
inet 192.168.178.61/24 brd 192.168.178.255 scope global dynamic noprefixroute wlx503eaa82fc4f
valid_lft 863972sec preferred_lft 863972sec
inet6 fe80::75d1:bc59:1b3c:c6e2/64 scope link noprefixroute
valid_lft forever preferred_lft forever
$ ip r
default via 192.168.178.1 dev enp4s0 proto static metric 100
default via 192.168.178.1 dev wlx503eaa82fc4f proto dhcp metric 20600
169.254.0.0/16 dev enp4s0 scope link metric 1000
192.168.178.0/24 dev enp4s0 proto kernel scope link src 192.168.178.61 metric 100
192.168.178.0/24 dev wlx503eaa82fc4f proto kernel scope link src 192.168.178.61 metric 600
无论出于什么原因,它现在似乎都可以起作用了,感谢您的帮助。