Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
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App Services & IPv6
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James Clayton
1
Reputation point
I noticed my spn failing conditional access for trusted locations. SignIn logs failures are only for it via IPv6 address; ULA private fde4:. IPv6 is not configured anywhere; vnet, pep, dns, ase, etc. I suspect split-tunneling is happening. User's laptop is Cisco IPv4-only to Azure VDI (:::1 ipconfig). User goes to Azure Apps redirect uri; server unavailable. SignIn logs show user auth ok, but spn failed ipv6 same time.
Som MS Learn articles mention IPv6 in App Services by backend Azure-Managed. I also use Get-DNS cmdlets and no AAAA exist in cache or redirect uri look up. Auth is oidc and there is a hardcoded uri below redirect uri. I see a couple proxy domains. Could Open-ID Connect be using IPv6 or a fail logging as a private IPv6?
Any ideas?
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