请教如何让两路网口同时工作
本帖最后由 钟宇泉 于 2019-12-14 15:08 编辑你好请问两路网口的测试教程都是要先关闭另外一路，如果不关闭的话。比如默认是开启eth0的。
我这边没有输入ifconfig eth0 down
就输入ifconfig eth1 192.168.137.82
开启网口eth1
连上网线也只有eth0可以ping的到
该如何设置才能两个网口都正常工作？
此时，PING eth0可以ping的通。
输入ifconfig eth0 down把ETH0关闭了，ETH1就ping的通了。 钟宇泉 发表于 2019-12-14 16:15
网段的问题，两个网口设置成不同的网段就可以了
不同网段和同个网段都行，需要知道哪个网络接口，如下
网线插在eth0和电脑（电脑默认IP为192.168.137.100，eth0为192.168.137.81）
root@myimx6ek140p:~# ifconfig
eth0 Link encap:EthernetHWaddr 1C:87:76:53:36:63
inet addr:192.168.137.81Bcast:192.168.137.255Mask:255.255.255.0
inet6 addr: fe80::1e87:76ff:fe53:3663%1995732688/64 Scope:Link
UP BROADCAST RUNNING MULTICASTMTU:1500Metric:1
RX packets:77 errors:0 dropped:0 overruns:0 frame:0
TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7725 (7.5 KiB)TX bytes:5558 (5.4 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1Mask:255.0.0.0
inet6 addr: ::1%1995732688/128 Scope:Host
UP LOOPBACK RUNNINGMTU:65536Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B)TX bytes:0 (0.0 B)
root@myimx6ek140p:~# ping -I eth0 192.168.137.100
PING 192.168.137.100 (192.168.137.100): 56 data bytes
64 bytes from 192.168.137.100: seq=0 ttl=128 time=3.331 ms
64 bytes from 192.168.137.100: seq=1 ttl=128 time=0.874 ms
64 bytes from 192.168.137.100: seq=2 ttl=128 time=1.041 ms
64 bytes from 192.168.137.100: seq=3 ttl=128 time=0.702 ms
^C
--- 192.168.137.100 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 0.702/1.487/3.331 ms
root@myimx6ek140p:~#
root@myimx6ek140p:~#
网线插在eth1和电脑（电脑默认IP为192.168.137.100，eth0为192.168.137.91）
root@myimx6ek140p:~# ifconfigeth1 192.168.137.91
fec 20b4000.ethernet eth1: Freescale FEC PHY driver (mii_bus:phy_addr=20b4000.ethernet:01, irq=-1)
IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
root@myimx6ek140p:~# fec 2188000.ethernet eth0: Link is Down
fec 20b4000.ethernet eth1: Link is Up - 100Mbps/Full - flow control off
IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
root@myimx6ek140p:~# ifconfig
eth0 Link encap:EthernetHWaddr 1C:87:76:53:36:63
inet addr:192.168.137.81Bcast:192.168.137.255Mask:255.255.255.0
inet6 addr: fe80::1e87:76ff:fe53:3663%1995650768/64 Scope:Link
UP BROADCAST MULTICASTMTU:1500Metric:1
RX packets:90 errors:0 dropped:0 overruns:0 frame:0
TX packets:38 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8998 (8.7 KiB)TX bytes:6034 (5.8 KiB)
eth1 Link encap:EthernetHWaddr 8E:13:50:B6:8D:0A
inet addr:192.168.137.91Bcast:192.168.137.255Mask:255.255.255.0
inet6 addr: fe80::8c13:50ff:feb6:8d0a%1995650768/64 Scope:Link
UP BROADCAST RUNNING MULTICASTMTU:1500Metric:1
RX packets:52 errors:0 dropped:0 overruns:0 frame:0
TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4832 (4.7 KiB)TX bytes:5138 (5.0 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1Mask:255.0.0.0
inet6 addr: ::1%1995650768/128 Scope:Host
UP LOOPBACK RUNNINGMTU:65536Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B)TX bytes:0 (0.0 B)
root@myimx6ek140p:~# ping -I eth1 192.168.137.100
PING 192.168.137.100 (192.168.137.100): 56 data bytes
64 bytes from 192.168.137.100: seq=0 ttl=128 time=1.624 ms
64 bytes from 192.168.137.100: seq=1 ttl=128 time=1.251 ms
64 bytes from 192.168.137.100: seq=2 ttl=128 time=0.662 ms
64 bytes from 192.168.137.100: seq=3 ttl=128 time=1.003 ms
64 bytes from 192.168.137.100: seq=4 ttl=128 time=0.856 ms
^C
--- 192.168.137.100 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 0.662/1.079/1.624 ms
root@myimx6ek140p:~#
如果还是不行的话，可以设置一下路由（route add default gw 192.168.137.1 eth1） 网段的问题，两个网口设置成不同的网段就可以了 软件01 发表于 2019-12-18 10:38
不同网段和同个网段都行，需要知道哪个网络接口，如下
网线插在eth0和电脑（电脑默认IP为192.168.137.100 ...
感谢你的指导。
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