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[Docs] More detail for `Microsoft.AspNetCore.Http.ConnectionInfo.RemoteIpAddress`

See original GitHub issue

Is there an existing issue for this?

I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

One uses HttpContext.Connection.RemoteIpAddress to get a client’s IP address.

Microsoft.AspNetCore.Http.ConnectionInfo.RemoteIpAddress is marked as nullable.

The docs linked above just say “Can be null” - under what conditions can it be null?

Describe the solution you’d like

The docs for Microsoft.AspNetCore.Http.ConnectionInfo.RemoteIpAddress are unclear. Please add more detail.

Additional context

No response

Issue Analytics

State:
Created 2 years ago
Reactions:1
Comments:7 (7 by maintainers)

Top GitHub Comments

1reaction

Tratchercommented, Feb 14, 2022

Kestrel is behind a reverse proxy server, and UseForwardedHeaders is not configured

When Kestrel is behind a reverse proxy then RemoteIpAddress will report the address of the proxy rather than null. I think the SO issue with IIS returning was null for a preview where this hadn’t been fully implemented yet.

1reaction

davidfowlcommented, Feb 14, 2022

If the connection isn’t a tcp connection. It could be a Unix domain socket or a transport that isn’t up based

Top Results From Across the Web

ConnectionInfo.RemoteIpAddress Property

Gets or sets the IP address of the remote target. Can be null.

IHttpConnectionFeature.RemoteIpAddress Property

Gets or sets the IPAddress of the client making the request. Note this may be for a proxy rather than the end user....

ConnectionInfo Class (Microsoft.AspNetCore.Http)

Represents the underlying connection for a request. ... In this article ... Http. Assembly: Microsoft.AspNetCore.Http.Abstractions.dll. Package: Microsoft.

HttpConnectionFeature.RemoteIpAddress Property

Gets or sets the IPAddress of the client making the request. Note this may be for a proxy rather than the end user....

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