Vodafone disables IPv4 support on mobile broadband network

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Background

Vodafone Australia is a major telecommunications provider offering cellular data services via SIM-based mobile plans and fixed-wireless 4G/5G routers. Historically, Vodafone has positioned itself as a value-driven competitor to Telstra and Optus, often trading lower price points for a more condensed geographic coverage footprint.

Incident

As of June 2025, Vodafone has moved to deprecate native IPv4 addressing on its mobile broadband APNs. While modern smartphones and PC operating systems utilize dual-stack or transition mechanisms (like DNS64/NAT64) to maintain connectivity, many legacy devices lack the internal protocol stack to communicate over an IPv6-only network.

Testing conducted by a consumer advocate, author of this article confirmed that the following devices fail to negotiate a connection when behind a Vodafone 4G/5G gateway:

• **Gaming Consoles:** PlayStation 4 and Nintendo Switch (specifically affecting connection to Nintendo store ).
• **Smart Media:** Various legacy Smart TV platforms and older IoT hardware.

This follows a long-standing history of inconsistent IPv4/IPv6 implementation within Vodafone's infrastructure, which has previously caused routing issues for Australian consumers.

Vodafone's response

Vodafone technical support has stated that the removal of native IPv4 is a necessary step due to the global exhaustion of IPv4 addresses. Support representatives have indicated that IPv4 is considered a legacy protocol and suggested that competitors such as Telstra and Optus are moving toward similar IPv6-primary architectures.

Possible Resolutions

Affected consumers may attempt the following workarounds to restore connectivity for non-IPv6 devices:

• **APN Modification:** Manually forcing the APN protocol to "IPv4" in router settings (though this is increasingly being blocked at the network level).
• **Layer 3 Translation:** Utilizing a Cisco router, Adaptive Security Appliance (ASA), or a Linux-based gateway to perform Network Address Translation (NAT) or tunneling.
• **VPN Tunnels:** Using a router-level VPN that provides a consistent IPv4 endpoint for the local network.