iMX6ULL 網絡功能全檢測

原創

imx6ULL 2020-12-18 18:12:00 imx6ull

本文以飛凌嵌入式 OKMX6ULL-S開發板為基礎講解，其它板卡請參考使用，本文主要講解了iMX6ULL 網絡功能的測試，分為無線網絡測試以及有線網絡測試，通過本文您可以快速了解飛凌 iMX6ULL開發板網絡測試的全過程。

一、有線網絡測試

1、基本命令測試

每個開發板的網絡使用環境未必相同，本節測試示例中，網絡環境如下。實際使用中，請按照實際網絡環境自行進行配置。

底板絲印	軟件設備
NET1	eth1
NET2	eth0

OKMX6ULL-C有eth0、eth1兩路網卡。開機已設置默認eth0、eth1自動分配IP。如果修改IP請修改/etc/network/interfaces。

注意：eth1與eth0不能用于同一個局域網。

下面以eth0為例進行命令說明。

1.1、在Linux系統下，使用ifconfig命令可以顯示或配置網絡設備，使用ethtool查詢及設置網卡參數。

1.2、設置IP地址，查看當前網卡詳情：

root@fl-imx6ull:~# ifconfig eth0 192.168.1.120
root@fl-imx6ull:~#ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 3A:D9:93:8E:A8:A4
          inet addr:192.168.1.120  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::38d9:93ff:fe8e:a8a4%2124311408/64 Scope:Link
          inet6 addr: fec0::38d9:93ff:fe8e:a8a4%2124311408/64 Scope:Site
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:28 errors:0 dropped:0 overruns:0 frame:0
          TX packets:63 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:11550 (11.2 KiB)  TX bytes:11579 (11.3 KiB)

1.3、動態分配IP地址

如果您的開發板與路由器連接，且路由器支持DHCP自動IP地址分配可以在超級終端里面輸入命令：

root@fl-imx6ull:~#udhcpc -i eth0
udhcpc (v1.24.1) started
Sending discover...
Sending select for 192.168.20.101...
Lease of 192.168.20.101 obtained, lease time 86400
/etc/udhcpc.d/50default: Adding DNS 222.222.222.222

用來動態獲取IP地址，“-i” 參數用來指定網卡名稱，飛凌iMX6ULL開發板有線網絡的網卡名稱為eth0。

/etc/resolv.conf文件中有dns服務器信息會被自動添加。

1.4、修改mac地址：

root@fl-imx6ull:~#ifconfig eth0 hw ether 00:00:00:00:00:01
root@fl-imx6ull:~#ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:00:00:00:00:01
          inet addr:192.168.20.101  Bcast:192.168.20.255  Mask:255.255.255.0
          inet6 addr: fec0::38d9:93ff:fe8e:a8a4%2128292720/64 Scope:Site
          inet6 addr: fec0::200:ff:fe00:1%2128292720/64 Scope:Site
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:85 errors:0 dropped:0 overruns:0 frame:0
          TX packets:118 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:22942 (22.4 KiB)  TX bytes:22259 (21.7 KiB)

另外在/forlinx/shell/mac.sh中根據uid設置MAC地址，如果需要請添加到開機自啟動腳本中。

1.5、設置子網掩碼：

root@fl-imx6ull:~#ifconfig eth0 netmask 255.255.255.0
root@fl-imx6ull:~#ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:00:00:00:00:01
          inet addr:192.168.20.101  Bcast:192.168.20.255  Mask:255.255.255.0
          inet6 addr: fec0::38d9:93ff:fe8e:a8a4%2128915312/64 Scope:Site
          inet6 addr: fec0::200:ff:fe00:1%2128915312/64 Scope:Site
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:107 errors:0 dropped:0 overruns:0 frame:0
          TX packets:118 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:25700 (25.0 KiB)  TX bytes:22259 (21.7 KiB)

1.6、設置廣播地址

root@fl-imx6ull:~#ifconfig eth0 broadcast 192.168.20.120
root@fl-imx6ull:~#ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:00:00:00:00:01
          inet addr:192.168.20.101  Bcast:192.168.20.120  Mask:255.255.255.0
          inet6 addr: fec0::38d9:93ff:fe8e:a8a4%2123332464/64 Scope:Site
          inet6 addr: fec0::200:ff:fe00:1%2123332464/64 Scope:Site
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:111 errors:0 dropped:0 overruns:0 frame:0
          TX packets:132 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:26130 (25.5 KiB)  TX bytes:25947 (25.3 KiB)

1.7、添加/刪除默認網關

添加默認網關：

root@fl-imx6ull:~#route add default gw 192.168.20.1

刪除默認網關：

root@fl-imx6ull:~#route del default gw 192.168.20.1

1.8、關閉開啟網卡

關閉eth0網卡：

root@fl-imx6ull:~#ifconfig eth0 down

開啟eth0網卡：

root@fl-imx6ull:~#ifconfig eth0 up
fec 20b4000.ethernet eth0: Freescale FEC PHY driver [Micrel KSZ8081 or KSZ8091] (mii_bus:phy_addr=20b4000.ethernet:01, irq=-1)
root@fl-imx6ull:~# fec 20b4000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx

2、 FTP服務

2.1、設置root用戶密碼，這里設置為forlinx，輸入密碼沒有回顯，串口終端無法看到輸入內容。

root@imx6ullevk:~# passwd root
New password:
Re-enter new password:

串口終端無法看到輸入內容

2.2、然后配置開發板ip地址，保證和電腦通信正常。

root@imx6ullevk:~#ifconfig eth0 192.168.2.207
root@imx6ullevk:~#ping 192.168.2.135 -c 3

配置開發板ip地址，通訊正常

2.3、電腦使用FileZilla連接iMX6ULL開發板。

2.3.1. 點擊文件，站點管理器：

站點管理器

2.3.2. 創建“新站點”，主機輸入開發板IP，加密方式選擇只是用明文FTP，登陸類型選擇正常，用戶和密碼為開發板的用戶和密碼，點擊“連接”。

點擊“連接“

3、SSH登錄測試

以太網相關服務測試之前，確保已經設置好IP。設置IP請參考以太網驅動測試部分。

配置信息：

開發板ip：192.168.2.85

Linux主機地址：192.168.2.149

Windows主機地址：192.168.2.12

3.1、測試由linux主機通過ssh訪問開發板

zs@developer-RH2485-V2:~$ssh root@192.168.2.85
The authenticity of host '192.168.2.85 (192.168.2.85)' can't be established.
RSA key fingerprint is 25:57:00:82:72:8f:09:8e:2d:b9:9b:41:e5:d6:06:bb.
Are you sure you want to continue connecting (yes/no)? y
Please type 'yes' or 'no': yes
Warning: Permanently added '192.168.2.85' (RSA) to the list of known hosts.

3.2、測試由Windows主機通過cmd.exe或者Cmder訪問開發板：

$  ssh root@192.168.2.85
root@fl-imx6ull:~#

3.3、由iMX6ULL開發板訪問linux主機

root@fl-imx6ull:~#dbclient zs@192.168.2.149
Host '192.168.2.149' is not in the trusted hosts file.
(ecdsa-sha2-nistp256 fingerprint md5 93:ff:74:8a:ed:ba:fd:21:39:d9:87:93:ad:9e:19:6f)
Do you want to continue connecting? (y/n) y
zs@192.168.2.149's password:
Welcome to Ubuntu 14.04.5 LTS (GNU/Linux 4.4.0-31-generic x86_64)
 * Documentation:  https://help.ubuntu.com/
504 packages can be updated.
421 updates are security updates.
New release '16.04.6 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
Last login: Mon Mar 23 12:50:22 2020 from 192.168.2.87

4、USB轉網絡測試

4.1、將USB轉以太網插入USB host接口，識別信息如下：

usb 1-1.3: new high-speed USB device number 8 using ci_hdrc

asix 1-1.3:1.0 eth2: register 'asix' at usb-ci_hdrc.1-1.3, ASIX AX88772B USB 2.0 Ethernet, 00:0e:c6:8f:9c:b7

IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready

USB轉網絡測試

4.2、測試方法參考以太網驅動測試章節。

二、無線網絡測試

1、WIFI測試

RTL8188eus—USB WIFI、RTL8723bu—USB WIFI使用方法如下。

1.1、USB WIFI RTL8188eus使用

USB WIFI無線局域網卡是選配模塊。

步驟1：開發板上電，啟動Linux系統。

步驟2：連接USB WIFI到飛凌開發板的USB host接口，正確安裝如下圖。

USB host接口，正確安裝

步驟3：打開腳本所在的位置：

root@fl-imx6ull:~#cd /forlinx/shell/

步驟4：按照如下格式輸入相應的參數：

說明：

-s表示wifi熱點的名稱

-p表示密碼，如果沒有密碼請輸入-p NONE

路由器采用wpa加密方式。

連接打印內容如下：

root@fl-imx6ull:/forlinx/shell#./wifi.sh -i 8188 -s forlinx -p xxxx
wifi 8188
ssid forlinx
pasw xxxx
usbcore: deregistering interface driver rtl8723bu
RTL871X: module exit start
usbcore: deregistering interface driver rtl8188eu
RTL871X: rtw_ndev_uninit(wlan1)
usb 1-1.3: reset high-speed USB device number 7 using ci_hdrc
RTL871X: module exit success
RTL871X: module init start
RTL871X: rtl8188eu v4.3.0.9_15178.20150907
RTL871X: build time: Mar 25 2020 02:23:46
bFWReady == _FALSE call reset 8051...
RTL871X: rtw_ndev_init(wlan0)
usbcore: registered new interface driver rtl8188eu
RTL871X: module init ret=0
==> rtl8188e_iol_efuse_patch
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not read
ps: invalid option -- 'f'
BusyBox v1.24.1 (2019-04-27 02:24:01 CST) multi-call binary.
Usage: ps
Successfully initialized wpa_supplicant
rfkill: Cannot open RFKILL controRTL871X: set bssid:00:00:00:00:00:00
l device
RTL871X: set ssid [g?isQ?J?)?????F|?T??vZ.c3???<????] fw_state=0x00000008
ioctl[SIOCSIWAP]: Operation not permitted
ioctl[SIOCGIWSCAN]: Resource temporarily unavailable
ioctl[SIOCGIWSCAN]: Resource temporarily unavailable
RTL871X: indicate disassoc
wlan0: Trying to associate with 04:d7:a5:84:fa:40 (SSID='forlinx' freq=2437 MHz)
RTL871X: set ssid [forlinx] fw_state=0x00000008
RTL871X: set bssid:04:d7:a5:84:fa:40
RTL871X: start auth
RTL871X: auth success, start assoc
RTL871X: assoc success
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
RTL871X: recv eapol packet
wlan0: Associated with 04:d7:a5:84:fa:40
RTL871X: send eapol packet
RsvdPageNum: 8
udhcpc (v1.24.1) started
RTL871X: recv eapol packet
RTL871X: send eapol packet
RTL871X: recv eapol packet
RTL871X: send eapol packet
RTL871X: set pairwise key camid:4, addr:04:d7:a5:84:fa:40, kid:0, type:AES
wlan0: WPA: Key negotiation completed with 04:d7:a5:84:fa:40 [PTKRTL871X: set group key camid:5, addr:04:d7:a5:84:fa:40, kid:2, type:AES
=CCMP GTK=CCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to 04:d7:a5:84:fa:40 completed [id=0 id_str=]
Sending discover...
Sending select for 192.168.4.129...
Lease of 192.168.4.129 obtained, lease time 36000
/etc/udhcpc.d/50default: Adding DNS 222.222.202.202
/etc/udhcpc.d/50default: Adding DNS 222.222.222.222
Finshed!

步驟5：ping ip或者域名，命令如下。

root@fl-imx6ull:/forlinx/shell#ping -c 4 www.baidu.com
PING www.baidu.com (220.181.38.149): 56 data bytes
64 bytes from 220.181.38.149: seq=0 ttl=51 time=26.648 ms
64 bytes from 220.181.38.149: seq=1 ttl=51 time=13.529 ms
64 bytes from 220.181.38.149: seq=2 ttl=51 time=15.656 ms
64 bytes from 220.181.38.149: seq=3 ttl=51 time=26.249 ms
--- www.baidu.com ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 13.529/20.520/26.648 ms

步驟6：卸載已經加入內核的模塊。

root@fl-imx6ull:/forlinx/shell#rmmod 8188eu
RTL871X: module exit start
usbcore: deregistering interface driver rtl8188eu
RTL871X: indicate disassoc
RTL871X: rtw_cmd_thread: DriverStopped(1) SurpriseRemoved(0) break at line 478
wlan0: CTRL-EVENT-DISCONNECTED bssid=04:d7:a5:84:fa:40 reason=3 locally_generated=1
RTL871X: rtw_ndev_uninit(wlan0)
RTL871X: rtw_dev_unload: driver not in IPS
usb 1-1.3: reset high-speed USB device number 7 using ci_hdrc
RTL871X: module exit success

2、板載WIFI的使用

如果開發板有板載的WIFI無線局域網卡，則焊接在評估板如圖所示位置：

無線局域網評估板焊接圖

步驟1：檢查開發板是否已經焊接該模塊，正確焊接如上圖。連接上天線。

步驟2：開發板上電，啟動Linux系統。

步驟3：進入測試腳本所在目錄：

root@fl-imx6ull:~# cd /forlinx/shell

步驟4：執行測試腳本：

說明：-s表示wifi熱點的名稱；

-p表示密碼，如果沒有密碼請輸入-p NONE；

路由器采用wpa加密方式。

連接打印內容如下：

root@fl-imx6ull:/forlinx/shell#./wifi.sh -i 8723 -sforlinx -pxxxx
wifi 8723
ssid forlinx
paswxxxx
usbcore: deregistering interface driver rtl8723bu
usbcore: registered new interface driver rtl8723bu
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
ps: invalid option -- 'f'
BusyBox v1.24.1 (2019-04-27 02:24:01 CST) multi-call binary.
Usage: ps
Successfully initialized wpa_supplicant
rfkill: Cannot open RFKILL control device
wlan0: Trying to associate with 04:d7:a5:84:fa:40 (SSID='forlinx' freq=2437 MHz)
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan0: Associated with 04:d7:a5:84:fa:40
wlan0: WPA: Key negotiation completed with 04:d7:a5:84:fa:40 [PTK=CCMP GTK=CCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to 04:d7:a5:84:fa:40 completed [id=0 id_str=]
udhcpc (v1.24.1) started
Sending discover...
Sending discover...
Sending select for 192.168.4.225...
Lease of 192.168.4.225 obtained, lease time 36000
/etc/udhcpc.d/50default: Adding DNS 222.222.202.202
/etc/udhcpc.d/50default: Adding DNS 222.222.222.222
Finshed!

步驟5：ping ip或者域名，命令如下。

root@fl-imx6ull:/forlinx/shell#ping -c 5 192.168.4.1
PING 192.168.4.1 (192.168.4.1): 56 data bytes
64 bytes from 192.168.4.1: seq=0 ttl=128 time=39.783 ms
64 bytes from 192.168.4.1: seq=1 ttl=128 time=81.529 ms
64 bytes from 192.168.4.1: seq=2 ttl=128 time=15.236 ms
64 bytes from 192.168.4.1: seq=3 ttl=128 time=12.076 ms
64 bytes from 192.168.4.1: seq=4 ttl=128 time=16.300 ms
--- 192.168.4.1 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 12.076/32.984/81.529 ms

步驟6：卸載已經加入內核的模塊：

root@fl-imx6ull:/forlinx/shell#rmmod 8723bu
usbcore: deregistering interface driver rtl8723bu
wlan0: CTRL-EVENT-DISCONNECTED bssid=04:d7:a5:84:fa:40 reason=0

2、4G模塊實現IE上網

2.1、將外擴USB 4G擴展板插入USB口，固定ME909s-821 PCIE封裝4G模塊，安裝ipex天線座，插入SIM卡，開機上電。

2.2、撥號上網

root@fl-imx6ull:~#cd /forlinx/shell/
root@fl-imx6ull:/forlinx/shell#./me909s.sh
eth0      Link encap:Ethernet  HWaddr 7E:09:81:93:F3:0A
eth1      Link encap:Ethernet  HWaddr DE:EA:3F:6C:A7:33
wlan0     Link encap:Ethernet  HWaddr 7C:A7:B0:0F:FC:14
udhcpc (v1.24.1) started
Sending discover...
Sending select for 10.63.223.158...
Lease of 10.63.223.158 obtained, lease time 518400
/etc/udhcpc.d/50default: Adding DNS 222.222.222.222
/etc/udhcpc.d/50default: Adding DNS 222.222.202.202
fec 20b4000.ethernet eth0: Freescale FEC PHY driver [Micrel KSZ8081 or KSZ8091] (mii_bus:phy_addr=20b4000.ethernet:01, irq=-1)
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
fec 2188000.ethernet eth1: Freescale FEC PHY driver [Micrel KSZ8081 or KSZ8091] (mii_bus:phy_addr=20b4000.ethernet:02, irq=-1)
IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
Finished!

2.3、連接成功之后，ping百度測試：

root@fl-imx6ull:/forlinx/shell#ping www.baidu.com
PING www.baidu.com (220.181.38.150): 56 data bytes
64 bytes from 220.181.38.150: seq=0 ttl=53 time=59.450 ms
64 bytes from 220.181.38.150: seq=1 ttl=53 time=71.086 ms
64 bytes from 220.181.38.150: seq=2 ttl=53 time=57.385 ms
64 bytes from 220.181.38.150: seq=3 ttl=53 time=71.033 ms
--- www.baidu.com ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 57.385/64.738/71.086 ms

2.4、斷網與復位指令測試：

斷開網絡連接：

root@fl-imx6ull:/forlinx/shell#echo "AT^NDISDUP=1,0"> /dev/ttyUSB2

復位重啟模塊：

root@fl-imx6ull:/forlinx/shell#echo "AT^RESET "> /dev/ttyUSB2

2.5、更換SIM卡需要更換me909.sh中相應的APN：

中國移動：

echo "AT^NDISDUP=1,1,\"cmnet\""> /dev/ttyUSB2

中國聯通：

echo "AT^NDISDUP=1,1,\"3gnet\""> /dev/ttyUSB2

中國電信（本文使用）：

echo "AT^NDISDUP=1,1,\"ctnet\""> /dev/ttyUSB2

3、GPRS模塊測試

GPRS模塊與開發板之間采用串口連接，客戶可以使用飛凌公司自產的GPRS模塊，也可以使用自己購買的串口GPRS模塊。

1）在確保模塊和開發板串口UART3連接、上電OK情況下，啟動開發板子，進入命令行終端輸入如下命令。

root@fl-imx6ull:~#cd /forlinx/shell/
root@fl-imx6ull:~#pppd call gprs /dev/ttymxc2 &
[1] 638
root@fl-imx6ull:/etc/ppp/peers# timeout set to 15 seconds
abort on (\nDELAYED\r)
abort on (\nBUSY\r)
abort on (\nERROR\r)
abort on (\nNO DIALTONE\r)
abort on (\nNO CARRIER\r)
send (^MAT^M)
expect (OK)
AT^M^M
OK
 -- got it
send (ATS0=0^M)
expect (OK)
^M
ATS0=0^M^M
OK
 -- got it
 
send (ATE0V1^M)
expect (OK)
^M
ATE0V1^M^M
OK
 -- got it
send (AT+CGDCONT=1,"IP","CMNET"^M)
expect (OK)
^M
^M
OK
 -- got it
 
send (ATDT*99***1#^M)
expect (CONNECT)
^M
^M
CONNECT
 -- got it
 
send (^M)
Script /usr/sbin/chat -s -v -f /etc/ppp/peers/chat-gprs-connect finished (pid 639), status = 0x0
Serial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttymxc2
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x23b2996e> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x1 <asyncmap 0xa0000> <auth pap>]
No auth is possible
sent [LCP ConfRej id=0x1 <auth pap>]
rcvd [LCP ConfRej id=0x1 <magic 0x23b2996e> <pcomp> <accomp>]
sent [LCP ConfReq id=0x2 <asyncmap 0x0>]
rcvd [LCP ConfReq id=0x2 <asyncmap 0xa0000> <auth chap MD5>]
No auth is possible
sent [LCP ConfRej id=0x2 <auth chap MD5>]
rcvd [LCP ConfAck id=0x2 <asyncmap 0x0>]
rcvd [LCP ConfReq id=0x3 <asyncmap 0xa0000>]
sent [LCP ConfAck id=0x3 <asyncmap 0xa0000>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
rcvd [IPCP ConfReq id=0x1 <addr 192.200.1.21>]
sent [IPCP ConfAck id=0x1 <addr 192.200.1.21>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01>]
sent [IPCP ConfReq id=0x2 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
rcvd [IPCP ConfNak id=0x2 <addr 10.131.70.33> <ms-dns1 111.11.1.3> <ms-dns2 111.11.11.3>]
sent [IPCP ConfReq id=0x3 <addr 10.131.70.33> <ms-dns1 111.11.1.3> <ms-dns2 111.11.11.3>]
rcvd [IPCP ConfAck id=0x3 <addr 10.131.70.33> <ms-dns1 111.11.1.3> <ms-dns2 111.11.11.3>]
not replacing existing default route via 192.168.1.1 with metric -1
local  IP address 10.131.70.33
remote IP address 192.200.1.21
primary   DNS address 111.11.1.3
secondary DNS address 111.11.11.3

2）連接成功可以嘗試ping一下www.powerye.cn

root@fl-imx6ull:~#ping www.powerye.cn
PING www.powerye.cn (39.156.66.18): 56 data bytes
64 bytes from 39.156.66.18: seq=0 ttl=51 time=315.605 ms
64 bytes from 39.156.66.18: seq=1 ttl=51 time=732.351 ms
64 bytes from 39.156.66.18: seq=2 ttl=51 time=234.874 ms
64 bytes from 39.156.66.18: seq=3 ttl=51 time=2990.813 ms
64 bytes from 39.156.66.18: seq=4 ttl=51 time=2110.219 ms
64 bytes from 39.156.66.18: seq=5 ttl=51 time=1151.022 ms
64 bytes from 39.156.66.18: seq=6 ttl=51 time=450.403 ms
64 bytes from 39.156.66.18: seq=7 ttl=51 time=4650.867 ms
64 bytes from 39.156.66.18: seq=8 ttl=51 time=3747.240 ms
64 bytes from 39.156.66.18: seq=9 ttl=51 time=2866.635 ms
64 bytes from 39.156.66.18: seq=10 ttl=51 time=1986.155 ms
64 bytes from 39.156.66.18: seq=11 ttl=51 time=1087.178 ms
64 bytes from 39.156.66.18: seq=12 ttl=51 time=368.113 ms
--- www.powerye.cn ping statistics ---
13 packets transmitted, 13 packets received, 0% packet loss
round-trip min/avg/max = 234.874/1745.498/4650.867 ms

注意：假如ping命令不通，可能是之前測試以太網或無線網絡接口時的一些配置的影響，此時需要先執行以下命令再測試模塊：

root@imx6ulevk:~# ifconfig eth0 down
root@imx6ulevk:~#ifconfig wlan0 down

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