3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

App IP AddressappIp

App IP Address in Authentication Request (AReq).

Source edition: Core 2.3.1.1 · Type: String · Length: Variable, maximum 45 · Maximum length: 45

Baseline in AReq Conditional

Varies by context. Requirement or applicability varies by channel or message category. Select a specific context to resolve it. Usage and conditions ↓

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Usage in AReq

External IP address (i.e., the device public IP address) used by the 3DS Requestor App when it connects to the 3DS Requestor environment.

Conditional inclusion — source text

Required unless market or regional mandate restricts sending this information.

Format and scope

Type: String · Length: Variable, maximum 45 · Maximum length: 45

Source components: 3DS Server. Channels: 01-APP. Categories: 01-PA, 02-NPA.

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 208

Related FAQ notes

  • IPv4 representation per RFC 791, IPv6 representation per RFC 4291 Section 2.2. Should be the external/public IP address of the device running the 3DS Requestor App—key for ACS risk analysis. — FAQ 25 (EMVCo FAQ)

Transaction context

This reference covers the published source edition. Use the explorer to inspect this field and any applicable transaction conditions. Scheme programme requirements are not inferred from the protocol edition.

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Sources and related references

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 208

Source review status: carried-forward. Carried-forward material has not acquired a new verification claim.

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