I’m trying to integrate HL7692 into an Embedded Linux ARM board using pppd. Modem is connected over UART (not USB), and the problem seems to be that there’s no IP address in IPCP response. Consequently there’s a “Could not determine local IP address” error by pppd.
Same pppd configuration (and SIM card) works with another (non-Sierra) USB modem, with the only line changed being ttyS5 replaced with ttyACM0.
Sending AT commands over UART port seems to be working fine.
Can’t upload detailed logs and configuration since “New users cannot upload attachments”, so I posted logs and relevant conf file together here: https://pastebin.com/8DRgGF9R
Here’s also probably the most important line:
rcvd [IPCP ConfNak id=0x9 <ms-dns1 184.108.40.206> <ms-dns2 220.127.116.11>]
rcvd [IPCP ConfNak id=0x1 <addr 10.247.92.74> <ms-dns1 18.104.22.168> <ms-dns2 22.214.171.124>]
Note that there’re only DNS addresses in the former, and both DNS and IP in the latter.