Does 4G mobile broadband get a new IP address every 4 weeks?

[aaron_liu]

Hi,

Does anyone know if Telstra 4G mobile broadband dongle gets a new IP address every 4weeks (28days or a month)?

We are keeping the mobile broadband on all the time for uploading measurement data to cloud, however, we have communication problems every 28 days/4weeks.

Thank you and best regards,

Aaron

[Jupiter · Accepted solution]

Hey Aaron, that is quite possible as the DHCP lease time on the network is probably set to 4 weeks. When it renews the lease, there is the likelihood that the IP address will change.

Assuming that this is for a corporate customer, have a chat to your IT group and see if they can get a Static IP address for the service.

[aaron_liu]

Thanks a lot Jupiter,
your reply is very helpful.

We are a major university in Brisbane. However, we bought the 4G mobile broadband for our research project and registered under a personal service.

I have checked with Telstra and it seems that no static IP address can be arranged for 4G mobile broadband. Oops.

Thank you!

best regards,

Aaron

[SteveW_52]

How often do you upload data? Maybe send 'keep alive' every few hours? Also maybe look at using a service name, rather than an IP address (I assume you are doing this to verify identity to an FTP or other data service - is IP the only way to verify)?.