# HL8548 - USB connection

**URL:** <https://forum.sierrawireless.com/t/hl8548-usb-connection/13961>\
**Category:** Legacy HL Series\
**Created:** [September 24, 2018, 8:36pm UTC](https://forum.sierrawireless.com/t/hl8548-usb-connection/13961 "2018-09-24T20:36:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sertone](https://avatars.discourse-cdn.com/v4/letter/s/b5e925/32.png) [@sertone](https://forum.sierrawireless.com/u/sertone)\
**Post date:** [September 24, 2018, 8:36pm UTC](https://forum.sierrawireless.com/t/hl8548-usb-connection/13961/1 "2018-09-24T20:36:48Z")

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I want setup internet connection using USB interface. I found a tutorial for HL75xx.  
Does exist a similar tutorial for HL85xx?

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**Author:** ![Sierra\_klin2](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/sierra_klin2/32/4769_2.png) [@Sierra\_klin2](https://forum.sierrawireless.com/u/Sierra_klin2)\
**Post date:** [September 27, 2018, 2:18am UTC](https://forum.sierrawireless.com/t/hl8548-usb-connection/13961/2 "2018-09-27T02:18:48Z")

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Hi sertone,

Here’s an example using the USB CDC-ECM in HL8548 for your reference.

AT+KUSBCOMP=1 //3 CDC-ACM and 3 CDC-ECM mode, (PID: 0x0302)  
OK  
AT+CFUN=1,1  
OK  
AT+CGDCONT=1,“IP”,“UNINET” // 1  
OK  
AT+XDNS=1,1 //1 Enable dynamic DNS request (IPv4)  
OK  
AT+XCEDATA=1,1 //\<ECM\_id\>: 2 (Range of values is from 0 – 2)  
OK  
AT+XDNS?  
+XDNS: 1, “120.80.80.80”, “221.5.88.88”  
OK  
AT+CGDCONT?  
+CGDCONT: 1,“IP”,“UNINET”,“10.79.159.99”,0,0  
OK

Then check and you can ping internet with it.  
ifconfig  
eth2 Link encap:Ethernet HWaddr 00:00:11:12:13:16  
inet addr:10.79.159.99 Bcast:10.65.255.255 Mask:255.255.0.0  
inet6 addr: fe80::200:11ff:fe12:1316/64 Scope:Link  
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1  
RX packets:6 errors:0 dropped:0 overruns:0 frame:0  
TX packets:67 errors:0 dropped:0 overruns:0 carrier:0  
collisions:0 txqueuelen:1000  
RX bytes:1440 (1.4 KB) TX bytes:12689 (12.6 KB)  
RX bytes:0 (0.0 B) TX bytes:690 (690.0 B)