EM7455 - IPV4V6 question

[boazso]

Hello,

When creating a dual-stack connection using ‘at+cgdcont=1,“IPV4V6”,“some-apn”’, is it possible that one connection (e.g. IPv6) will fail while the other remain? Assuming we are checking that internet is reachable by pinging the outside world, can there be a case where ping to a global IPv6 address will fail while pinging an IPv4 will succeed over cellular?

Thank you,

Boaz.

[Vianney]

Hi @boazso,
In theory, When the device sends IPV4IPV6 request to APN provider

• If IP4 and IP6 are supported, the provider will assign one IP4 and one IP6 to the device. At that moment, the device has 2 active (up) virtual interfaces
• If the provider just supports either of them, the device receives 1 active (up) virtual interface only

@boazso

is it possible that one connection (e.g. IPv6) will fail while the other remain

The answer is NO. both IPs will drop if there is any failure. The device has to re-send a request for new IPs
Please share any concerns you have and help tick “Solution” if my response answers your question
Thanks