Beaglebone black 网络不通，请帮忙。

leo chen

硬件：英贝特的beaglebone black

软件：debian-wheezy-7.2-armhf-3.8.13-bone30.img.xz

问题:

eth0采用dhcp方式获取ip，启动的时候是可以获取到的

[ 72.651170] net eth0: initializing cpsw version 1.12 (0)
[ 72.659013] net eth0: phy found : id is : 0x7c0f1
[ 72.664017] libphy: PHY 4a101000.mdio:01 not found
[ 72.669065] net eth0: phy 4a101000.mdio:01 not found on slave 1
[ 72.681191] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Listening on LPF/eth0/c8:a0:30:ac:8c:03
Sending on LPF/eth0/c8:a0:30:ac:8c:03
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
[ 75.736261] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
[ 75.742301] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPOFFER from 192.168.1.1
DHCPACK from 192.168.1.1
bound to 192.168.1.104 -- renewal in 2988 seconds.
done.

可以ping通网关

PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_req=1 ttl=64 time=0.488 ms
64 bytes from 192.168.1.1: icmp_req=2 ttl=64 time=0.238 ms
64 bytes from 192.168.1.1: icmp_req=3 ttl=64 time=0.213 ms
64 bytes from 192.168.1.1: icmp_req=4 ttl=64 time=0.179 ms
64 bytes from 192.168.1.1: icmp_req=5 ttl=64 time=0.207 ms
64 bytes from 192.168.1.1: icmp_req=6 ttl=64 time=0.232 ms

进入系统以后，执行
ifconfig eth0 down
ifconfig eth0 up

出现以下显示

[ 347.538091] net eth0: initializing cpsw version 1.12 (0)
[ 347.546628] net eth0: phy found : id is : 0x7c0f1
[ 347.552070] libphy: PHY 4a101000.mdio:01 not found
[ 347.557146] net eth0: phy 4a101000.mdio:01 not found on slave 1
[ 347.567236] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 349.554619] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
[ 349.561280] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

ifconfig也能够也显示获取到了ip
eth0 Link encap:Ethernet HWaddr c8:a0:30:ac:8c:03
inet addr:192.168.1.104 Bcast:255.255.255.255 Mask:255.255.255.0
inet6 addr: fe80::caa0:30ff:feac:8c03/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:322 errors:0 dropped:0 overruns:0 frame:0
TX packets:179 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:91058 (88.9 KiB) TX bytes:16126 (15.7 KiB)
Interrupt:56

再执行ping

PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
From 192.168.1.104 icmp_seq=1 Destination Host Unreachable
From 192.168.1.104 icmp_seq=2 Destination Host Unreachable
From 192.168.1.104 icmp_seq=3 Destination Host Unreachable
From 192.168.1.104 icmp_seq=4 Destination Host Unreachable
From 192.168.1.104 icmp_seq=5 Destination Host Unreachable
From 192.168.1.104 icmp_seq=6 Destination Host Unreachable
From 192.168.1.104 icmp_seq=7 Destination Host Unreachable

--- 192.168.1.1 ping statistics ---
8 packets transmitted, 0 received, +7 errors, 100% packet loss, time 7009ms
pipe 4

这是什么原因，有谁遇到过，请大神赐教！非常感谢！

11 年多前

0 Gary Wu 11 年多前

TI__Genius 10941 points

试过原beaglebone-black的linux跑过如何？网络是否通？

0 leo chen 11 年多前回复 Gary Wu

Mastermind 9486 points

也是不行哦，以下是log

root@beaglebone:~# ifconfig
eth0 Link encap:Ethernet HWaddr C8:A0:30:B9:1A:E5
inet addr:192.168.1.102 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::caa0:30ff:feb9:1ae5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:19 errors:0 dropped:0 overruns:0 frame:0
TX packets:41 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3101 (3.0 KiB) TX bytes:6938 (6.7 KiB)
Interrupt:56

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric: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@beaglebone:~# ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: seq=0 ttl=64 time=0.557 ms
64 bytes from 192.168.1.1: seq=1 ttl=64 time=0.385 ms
^C
--- 192.168.1.1 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 0.385/0.471/0.557 ms
root@beaglebone:~# ifconfig eth0 down
root@beaglebone:~# ifconfig eth0 up
[ 52.735731] libphy: PHY 4a101000.mdio:01 not found
[ 52.740817] net eth0: phy 4a101000.mdio:01 not found on slave 1
root@beaglebone:~# ifconfig
eth0 Link encap:Ethernet HWaddr C8:A0:30:B9:1A:E5
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:47 errors:0 dropped:0 overruns:0 frame:0
TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8117 (7.9 KiB) TX bytes:8114 (7.9 KiB)
Interrupt:56

root@beaglebone:~# ifconfig
eth0 Link encap:Ethernet HWaddr C8:A0:30:B9:1A:E5
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:47 errors:0 dropped:0 overruns:0 frame:0
TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8117 (7.9 KiB) TX bytes:8114 (7.9 KiB)
Interrupt:56

root@beaglebone:~# ifconfig
eth0 Link encap:Ethernet HWaddr C8:A0:30:B9:1A:E5
inet addr:169.254.28.227 Bcast:169.254.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:47 errors:0 dropped:0 overruns:0 frame:0
TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8117 (7.9 KiB) TX bytes:8114 (7.9 KiB)
Interrupt:56

root@beaglebone:~# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default * 0.0.0.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0
root@beaglebone:~# dhclient eth0
-sh: dhclient: command not found
root@beaglebone:~# ifup eth0
udhcpc (v1.20.2) started
Sending discover...
Sending discover...
Sending discover...
No lease, failing
root@beaglebone:~# ifdown eth0
ifdown: interface eth0 not configured
root@beaglebone:~# ifconfig
eth0 Link encap:Ethernet HWaddr C8:A0:30:B9:1A:E5
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:47 errors:0 dropped:0 overruns:0 frame:0
TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8117 (7.9 KiB) TX bytes:8114 (7.9 KiB)
Interrupt:56

root@beaglebone:~#

0 Steven Liu1 11 年多前回复 leo chen

TI__Mastermind 25020 points

后面的DHCP没获取到IP啊，用Wireshark抓个包看一下，后面失败的原因是DHCP请求没法出去，还是Server端没回应，亦或者是收到回应后板子这边没应答。

0 Gary Wu 11 年多前回复 leo chen

TI__Genius 10941 points

测试了TI SDK06.00在Beaglebone-Black上，可以ping通

ifconfig eth0 down

ifconfig eth0 up

ping

root@am335x-evm:~#
root@am335x-evm:~# ifconfig eth0 down
root@am335x-evm:~# ifconfig
lo        Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          UP LOOPBACK RUNNING MTU:16436 Metric: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@am335x-evm:~# ifconfig eth0 up
[ 137.743041] net eth0: CPSW phy found : id is : 0x7c0f1
root@am335x-evm:~# i[ 139.736083] PHY: 0:00 - Link is Up - 100/Full
fc
-root@am335x-evm:~# ifconfig
eth0      Link encap:Ethernet HWaddr C8:A0:30:AB:D0:77
          inet addr:10.87.1.47 Bcast:0.0.0.0 Mask:255.255.255.224
          UP BROADCAST RUNNING ALLMULTI MULTICAST MTU:1500 Metric:1
          RX packets:215 errors:0 dropped:76 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:19560 (19.1 KiB) TX bytes:1364 (1.3 KiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          UP LOOPBACK RUNNING MTU:16436 Metric: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@am335x-evm:~# ping 10.87.1.55
PING 10.87.1.55 (10.87.1.55): 56 data bytes
64 bytes from 10.87.1.55: seq=0 ttl=128 time=1.770 ms
64 bytes from 10.87.1.55: seq=1 ttl=128 time=0.885 ms
64 bytes from 10.87.1.55: seq=2 ttl=128 time=0.611 ms
64 bytes from 10.87.1.55: seq=3 ttl=128 time=0.763 ms

0 leo chen 11 年多前回复 Gary Wu

Mastermind 9486 points

非常感谢你的回复，不过EVM的网络接口和beaglebone black的网络接口硬件不一样的，一个是千兆，一个是百兆

难道是硬件设计的问题？

谁有BBB的板子，可以试一下啊，非常感谢

0 yongt chen 7 年多前回复 leo chen

Prodigy 82 points

你好，你的问题解决了么，我重新移植的内核也出现了这个问题，然后网卡就废了，感觉像是找不到网卡配置信息？我之前用BBB是没有这个问题的，现在用的BBG才出现这个问题，而且比较频繁

0 yongqing wang 7 年多前回复 yongt chen

Guru 27460 points

对比一下BBB的内核配置文件，可能网络配置不同

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Beaglebone black 网络不通，请帮忙。