我以前使用固定 IP 地址，但现在必须使用 DHCP，现在出现的问题是，如果我选择USE DHCP网络选项，我就无法获得网关 IP 地址。
以 // 开头的行是注释 - 只是为了澄清。
// With DHCP active.
me@me-desktop:~$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
link-local 0.0.0.0 255.255.0.0 U 1000 0 0 eno1
192.168.0.0 0.0.0.0 255.255.255.0 U 100 0 0 eno1
// Note here 4 lines given back. (above)
me@me-desktop:~$ ifconfig
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.146 netmask 255.255.255.0 broadcast 192.168.0.255
ether 94:c6:91:11:55:10 txqueuelen 1000 (Ethernet)
RX packets 78160 bytes 32127382 (32.1 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 61451 bytes 9398783 (9.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 16 memory 0xdc200000-dc220000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 17637 bytes 1350767 (1.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 17637 bytes 1350767 (1.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
me@me-desktop:~$ ping 8.8.8.8
ping: connect: Network is unreachable
me@me-desktop:~$
// With Static IP set.
me@me-desktop:~$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default gateway 0.0.0.0 UG 100 0 0 eno1
link-local 0.0.0.0 255.255.0.0 U 1000 0 0 eno1
192.168.0.0 0.0.0.0 255.255.255.0 U 100 0 0 eno1
// Note here 5 lines given and there is a DEFAULT GATEWAY line.
me@me-desktop:~$ ifconfig
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.6 netmask 255.255.255.0 broadcast 192.168.0.255
ether 94:c6:91:11:55:10 txqueuelen 1000 (Ethernet)
RX packets 87697 bytes 33731832 (33.7 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 64112 bytes 9669285 (9.6 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 16 memory 0xdc200000-dc220000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 17998 bytes 1376581 (1.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 17998 bytes 1376581 (1.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
me@me-desktop:~$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=116 time=11.5 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=116 time=10.9 ms
^C
--- 8.8.8.8 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 10.866/11.175/11.485/0.309 ms
这使得使用 DHCP 变得非常困难。
如何让 DHCP 正常工作？提前致谢。