琢磨了两三天 OpenWRT 4G LTE 模块上网，用的物联网卡测试，发现无法正常连接。最后换自己手机卡就可以了。。
总结是 uqmi IPV6 错误原因是 SIM 卡套餐不支持 IPV6 ..
Thu Apr 22 12:23:51 2021 daemon.notice netifd: Interface 'wwan' is setting up now
Thu Apr 22 12:23:51 2021 daemon.notice netifd: wwan (15865): Waiting for SIM initialization
Thu Apr 22 12:23:52 2021 daemon.notice netifd: wwan (15865): Device does not support 802.3 mode. Informing driver of raw-ip only for wwan0 ..
Thu Apr 22 12:23:52 2021 daemon.notice netifd: wwan (15865): Waiting for network registration
Thu Apr 22 12:23:52 2021 daemon.notice netifd: wwan (15865): Starting network wwan
Thu Apr 22 12:23:52 2021 daemon.notice netifd: wwan (15865): Unable to connect IPv6
Thu Apr 22 12:26:27 2021 daemon.notice netifd: wwan (16989): Stopping network wwan
Thu Apr 22 12:26:27 2021 daemon.notice netifd: wwan (16989): Command failed: Permission denied最近编辑记录 Iron (2021-04-22 13:00:41)
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分享经验很重要，减少入坑，顶一下。
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