Hello guys!
Does anyone use Alcatel IK41VE1? Did he have problems with this model?
For the needs of one project I made a test configuration with ROS7 with failover, using HAP AC2, network cable on one port, USB hub with external power supply and 2 USB LTE modems - one Huawei E3372H and the other ZTE MF833U1. Everything works perfectly. But a mobile provider that works with Huawei said that unfortunately it has exhausted it and offered me Alcatel IK41VE1 (I need about 30 devices)
And this is where the problems began.
The Alcatel device uses a different network IP address. Which, of course, is not a problem. I change the IP addresses concerning this device in the routing table (Huawei network is 192.168.8.0, and alcatel - 192.168.1.0). The traffic starts for 1 minute and then stops, and the USB LTE modem reports that the host is unreachable. The result is the same from the computer behind the router and from the router itself. I have a ping to the gate of the LTE interface, but nothing after that. The same device connected directly to a computer works without problems.
I decided, that due to oversight I missed to change some configuration setting, so I returned the router to the factory default settings and left only one mobile provider. No failover. Only the default settings through the Quick Set and the LTE interface which is added automatically. If I use the provider with the ZTE device I have no problem, but if I turn on Alcatel - 1 minute and the host is unreachable. I even tried the default APN profile to be absolutely sure that both devices use the same settings coming from the APN profiles. Without success...
I decided that the problem was in ROS7. Another router (spare RB3011) with 6.49.5. Factory settings again, same problem again.
In connection with the above problems I have 2 interpretations.
1. Problems in ROS. But why do I have traffic to the IP address of the USB device?!
2. Some TTL problem .... Just in case the Alcatel firmware is "angry" when the TTL of the incoming packets is not the starting one ... This should be the only thing different between using the device from a computer directly and from computer behind the router. But on the other hand, when the traffic is coming from the router, the situation with TTL should be the same as if it were from a computer to which the USB modem is directly connected?!
Anyone have any other ideas?