I'm not able to get the assigned IP address from my WG1602 Fibocom NL668 4G modem to the Openwrt interface.
It seems to connect to the 4G network ok, and I can verify the modem has been given its IP address etc. The interface never sets it. Here is my current config.
EDIT: Resolved in reply, may also be helptul for the WG1608 also with this modem.
config interface 'LTE'
option device '/dev/ttyUSB1'
option proto 'ncm'
option apn '3internet'
option mode 'lte'
option pdptype 'IP'
option metric '40'
option delegate '0'
option debug '1'
option ipv6 'auto'
/etc/gcom/ncm.json
{
"fibocom": {
"initialize": [
"AT",
"ATZ",
"ATQ0",
"ATV1",
"ATE1",
"ATS0=0",
// Define PDP context #${profile}, e.g. 1
// ${pdptype} is typically "IP" or "IPV4V6"
// ${apn} would be your APN string, e.g. "internet"
],
"modes": {
// For Huawei we had e.g. AT^SYSCFGEX=...
// On Fibocom, you can set RAT with AT+GTRAT:
// 0 = GSM only
// 2 = UMTS only
// 3 = LTE only
// 6 = LTE/UMTS/GSM (triple-mode)
// 10 = Automatic
"preferlte": "AT+GTRAT=3", // LTE-only
"preferumts": "AT+GTRAT=2", // UMTS-only
"lte": "AT+GTRAT=3", // Force LTE
"umts": "AT+GTRAT=2", // Force 3G
"gsm": "AT+GTRAT=0", // 2G only
"auto": "AT+GTRAT=6" // All RATs (LTE/UMTS/GSM)
},
"configure": [
"AT+GTRAT=3",
"AT+CGDCONT=${profile},\\\"${pdptype}\\\"${apn:+,\\\"$apn\\\"}",
"AT+CGATT=1",
],
"connect": "AT+CGACT=${profile}",
"disconnect": "AT+CGACT=0,${profile}"
}
}
If I do, I will get example below, so I can see the IP has been assigned to the modem.
picocom -b 115200 /dev/ttyUSB1
AT+CGCONTRDP=1
+CGCONTRDP: 1,5,"3internet","138.23.212.18",,"138.21.212.128","138.23.212.129"
And here is my interface log
Thu Jan 23 22:00:52 2025 daemon.notice netifd: LTE (15131): sending -> AT
Thu Jan 23 22:00:52 2025 daemon.notice netifd: LTE (15131): sending -> ATZ
Thu Jan 23 22:00:53 2025 daemon.notice netifd: LTE (15131): sending -> ATQ0
Thu Jan 23 22:00:53 2025 daemon.notice netifd: LTE (15131): sending -> ATV1
Thu Jan 23 22:00:54 2025 daemon.notice netifd: LTE (15131): sending -> ATE1
Thu Jan 23 22:00:55 2025 daemon.notice netifd: LTE (15131): sending -> ATS0=0
Thu Jan 23 22:00:55 2025 daemon.notice netifd: LTE (15131): Configuring modem
Thu Jan 23 22:00:55 2025 daemon.notice netifd: LTE (15131): sending -> AT+GTRAT=3
Thu Jan 23 22:00:56 2025 daemon.notice netifd: LTE (15131): sending -> AT+CGDCONT=1,"IP","3internet"
Thu Jan 23 22:00:57 2025 daemon.notice netifd: LTE (15131): sending -> AT+CGATT=1
Thu Jan 23 22:00:57 2025 daemon.notice netifd: LTE (15131): Setting mode
Thu Jan 23 22:00:58 2025 daemon.notice netifd: LTE (15131): sending -> AT+GTRAT=3
Thu Jan 23 22:00:58 2025 daemon.notice netifd: LTE (15131): Starting network LTE
Thu Jan 23 22:00:58 2025 daemon.notice netifd: LTE (15131): Connecting modem
Thu Jan 23 22:00:59 2025 daemon.notice netifd: LTE (15131): sending -> AT+CGACT=1
Thu Jan 23 22:00:59 2025 daemon.notice netifd: LTE (15131): Setting up wwan0
Thu Jan 23 22:00:59 2025 daemon.notice netifd: Interface 'LTE' is now up
Thu Jan 23 22:00:59 2025 daemon.notice netifd: Network device 'wwan0' link is up
Thu Jan 23 22:00:59 2025 daemon.notice netifd: Network alias 'wwan0' link is up
Thu Jan 23 22:00:59 2025 daemon.notice netifd: Interface 'LTE_4' is enabled
Thu Jan 23 22:00:59 2025 daemon.notice netifd: Interface 'LTE_4' has link connectivity
Thu Jan 23 22:00:59 2025 daemon.notice netifd: Interface 'LTE_4' is setting up now
Thu Jan 23 22:00:59 2025 daemon.notice netifd: LTE_4 (15396): udhcpc: started, v1.36.1
Thu Jan 23 22:00:59 2025 user.notice firewall: Reloading firewall due to ifup of LTE (wwan0)
Thu Jan 23 22:00:59 2025 daemon.notice netifd: LTE_4 (15396): udhcpc: broadcasting discover
Thu Jan 23 22:01:00 2025 daemon.warn odhcpd[2258]: No default route present, overriding ra_lifetime!
Thu Jan 23 22:01:03 2025 daemon.notice netifd: LTE_4 (15396): udhcpc: broadcasting discover
Thu Jan 23 22:01:06 2025 daemon.notice netifd: LTE_4 (15396): udhcpc: broadcasting discover
