我正在通过 wlan0 ssh 连接到树莓派并尝试通过以太网接口连接到调制解调器。
看一下我的表格和我的 ip 路由获取:
lz@raspberrypi:~ $ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.33.1 0.0.0.0 UG 600 0 0 wlan0
192.168.1.1 0.0.0.0 255.255.255.255 UH 10 0 0 eth0
192.168.33.0 0.0.0.0 255.255.255.0 U 600 0 0 wlan0
lz@raspberrypi:~ $ ip route get 192.168.1.1
local 192.168.1.1 dev lo src 192.168.1.1 uid 1000
cache local
无论我尝试什么,它总是通过环回接口。
ifconfig 输出:
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::____________ prefixlen 64 scopeid 0x20<link>
ether ____________ txqueuelen 1000 (Ethernet)
RX packets 346 bytes 15916 (15.5 KiB)
RX errors 1 dropped 346 overruns 0 frame 0
TX packets 113 bytes 13414 (13.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
我也尝试了跨界面:
cat /proc/sys/net/ipv4/ip_forward
1
网络接口
$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source /etc/network/interfaces.d/*
auto eth0
iface eth0 inet static
address 192.168.1.1
netmask 255.255.255.0
为什么路由总是以环回结束?