root@OpenWrt:~# quectel-CM -s cmnet -4 -6 [04-14_06:56:51:778] Quectel_QConnectManager_Linux_V1.6.0.25 [04-14_06:56:51:779] network interface '' or qmidev '' is not exist [04-14_06:56:51:780] netcard driver = pcie_mhi, driver version = V1.3.0.17 [04-14_06:56:51:781] qmap_mode = 4, qmap_version = 9, qmap_size = 16384, muxid = 0x81, qmap_netcard = rmnet_mhi0.1 [04-14_06:56:51:782] Modem works in QMI mode [04-14_06:56:51:783] connect to quectel-qmi-proxy0 sockfd = 7 [04-14_06:56:51:783] cdc_wdm_fd = 7 [04-14_06:56:51:789] Get clientWDS = 15 [04-14_06:56:51:792] Get clientWDS = 16 [04-14_06:56:51:794] Get clientDMS = 3 [04-14_06:56:51:798] Get clientNAS = 4 [04-14_06:56:51:801] Get clientUIM = 1 [04-14_06:56:51:805] Get clientWDA = 1 [04-14_06:56:51:809] requestBaseBandVersion RM500QGLABR10A03M4G [04-14_06:56:51:813] qmap_settings.rx_urb_size = 16384 [04-14_06:56:51:813] qmap_settings.ul_data_aggregation_max_datagrams = 11 [04-14_06:56:51:814] qmap_settings.ul_data_aggregation_max_size = 8192 [04-14_06:56:51:814] qmap_settings.dl_minimum_padding = 0 [04-14_06:56:51:835] requestGetSIMStatus SIMStatus: SIM_READY [04-14_06:56:51:836] requestSetProfile[1] cmnet///0 [04-14_06:56:51:848] requestGetProfile[1] cmnet///0 [04-14_06:56:51:852] requestRegistrationState2 MCC: 460, MNC: 0, PS: Attached, DataCap: 5G_NSA [04-14_06:56:51:857] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED [04-14_06:56:51:860] requestQueryDataCall IPv6ConnectionStatus: DISCONNECTED [04-14_06:56:51:861] ifconfig rmnet_mhi0 down [04-14_06:56:51:885] ifconfig rmnet_mhi0.1 0.0.0.0 ifconfig: SIOCSIFFLAGS: Network is down [04-14_06:56:51:909] ifconfig rmnet_mhi0.1 down [04-14_06:56:51:943] requestSetupDataCall WdsConnectionIPv4Handle: 0x341450a0 [04-14_06:56:52:423] requestSetupDataCall WdsConnectionIPv6Handle: 0x341439f0 [ 1001.561353] net rmnet_mhi0: link_state 0x0 -> 0x1 [04-14_06:56:52:441] ifconfig rmnet_mhi0 up [ 1001.584623] [I][mhi_netdev_open] Opened net dev interface [04-14_06:56:52:467] ifconfig rmnet_mhi0.1 up [04-14_06:56:52:495] you are use OpenWrt? [04-14_06:56:52:496] should not calling udhcpc manually? [04-14_06:56:52:496] should modify /etc/config/network as below? [04-14_06:56:52:497] config interface wan [04-14_06:56:52:497] option ifname rmnet_mhi0.1 [04-14_06:56:52:497] option proto dhcp [04-14_06:56:52:498] should use "/sbin/ifstaus wan" to check rmnet_mhi0.1 's status? [04-14_06:56:52:498] busybox udhcpc -f -n -q -t 5 -i rmnet_mhi0.1 udhcpc: started, v1.28.3 udhcpc: sending discover udhcpc: sending select for 10.245.22.3 udhcpc: lease of 10.245.22.3 obtained, lease time 7200 [04-14_06:56:52:713] udhcpc: ifconfig rmnet_mhi0.1 10.245.22.3 netmask 255.255.255.248 broadcast + [04-14_06:56:52:754] udhcpc: setting default routers: 10.245.22.4 [04-14_06:56:52:838] ip -6 address flush dev rmnet_mhi0.1 [04-14_06:56:52:861] ip -6 address add 2409:8930:463:3daa:7c8e:429a:c902:c6cc/64 dev rmnet_mhi0.1 [04-14_06:56:52:884] ip -6 route add default dev rmnet_mhi0.1 root@OpenWrt:~# cat /etc/resolv.conf nameserver 2409:8030:2000:0:0:0:0:1 # IPV6 rmnet_mhi0.1 nameserver 2409:8030:2000:0:0:0:0:2 # IPV6 rmnet_mhi0.1 search lan nameserver 127.0.0.1 root@OpenWrt:~# ip -6 ro show 2409:8930:463:96df::/64 dev rmnet_mhi0.1 proto kernel metric 256 fe80::/64 dev br-lan proto kernel metric 256 fe80::/64 dev br0 proto kernel metric 256 default dev rmnet_mhi0.1 metric 1024 root@OpenWrt:~# ping6 www.qq.com PING www.qq.com (2402:4e00:1430:1301::9227:79cc:76f2): 56 data bytes 64 bytes from 2402:4e00:1430:1301::9227:79cc:76f2: seq=0 ttl=51 time=97.230 ms