# Multi-pdn on the mc7455

**URL:** <https://forum.sierrawireless.com/t/multi-pdn-on-the-mc7455/13571>\
**Category:** IoT Modules\
**Created:** [August 21, 2018, 3:22am UTC](https://forum.sierrawireless.com/t/multi-pdn-on-the-mc7455/13571 "2018-08-21T03:22:47Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![frankyang](https://avatars.discourse-cdn.com/v4/letter/f/8c91f0/32.png) [@frankyang](https://forum.sierrawireless.com/u/frankyang)\
**Post date:** [August 21, 2018, 3:22am UTC](https://forum.sierrawireless.com/t/multi-pdn-on-the-mc7455/13571/1 "2018-08-21T03:22:47Z")

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hi, I want to develop the multi-pdn on the mc7455  
now the linux dirver is ok. I can see the two qmi interfaces, /dev/qcqmi0 and qcqmi1  
there are two network interfaces eth1 and eth2  
I can make the qmi call successfully.

1. first run the below app  
./connectionmgrhosti686 slqssdk 0

2. Start LTE Data Session

3. run the dhcp client with the eth1

but I don’t know how to start the second pdn with the qcqmi1 . can you help to give me advice ,many thanks.

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**Author:** ![lotam](https://avatars.discourse-cdn.com/v4/letter/l/958977/32.png) [@lotam](https://forum.sierrawireless.com/u/lotam)\
**Post date:** [August 21, 2018, 3:59am UTC](https://forum.sierrawireless.com/t/multi-pdn-on-the-mc7455/13571/2 "2018-08-21T03:59:10Z")

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Hi Frankyang,

Before setup 2nd PDN, you have to configure additional profile, “8. Create a Profile on the device” (normally with different APN name, please check with your network carrier).

After the 1st PDN is established, call “2. Start LTE Data Session” again with new profile will setup 2nd PDN automatically using qcqmi1/eth2.

Thx

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**Author:** ![frankyang](https://avatars.discourse-cdn.com/v4/letter/f/8c91f0/32.png) [@frankyang](https://forum.sierrawireless.com/u/frankyang)\
**Post date:** [August 22, 2018, 1:54am UTC](https://forum.sierrawireless.com/t/multi-pdn-on-the-mc7455/13571/3 "2018-08-22T01:54:44Z")

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thanks a lot for your hardwork!!!

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**Author:** ![lotam](https://avatars.discourse-cdn.com/v4/letter/l/958977/32.png) [@lotam](https://forum.sierrawireless.com/u/lotam)\
**Post date:** [August 22, 2018, 5:25am UTC](https://forum.sierrawireless.com/t/multi-pdn-on-the-mc7455/13571/4 "2018-08-22T05:25:31Z")

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Hi Frankyang,

Seems like it works for you, please mark the post as resolved.

Thx

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**Author:** ![thuytle99](https://avatars.discourse-cdn.com/v4/letter/t/eb9ed0/32.png) [@thuytle99](https://forum.sierrawireless.com/u/thuytle99)\
**Post date:** [September 6, 2023, 11:46pm UTC](https://forum.sierrawireless.com/t/multi-pdn-on-the-mc7455/13571/5 "2023-09-06T23:46:35Z")

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just a question, is the profile stored in the modem… eeprom?

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [September 7, 2023, 12:59am UTC](https://forum.sierrawireless.com/t/multi-pdn-on-the-mc7455/13571/6 "2023-09-07T00:59:50Z")

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Yes, the profile is stored in module