System.Net.IPNetwork parse CIDR issue

[changhuixu]

Description

The official documentation is too succinct that doesn't have much meaningful content.

Now, IPNetwork can parse simple CIDR string like this IPNetwork.TryParse("192.168.1.0/24", out var _)

but failed to parse

IPNetwork.TryParse("2001:0db8::1/64", out var _);

Is there a plan to improve this functionality?

Reproduction Steps

https://dotnetfiddle.net/0j9T3g

You can try this dotnet fiddle

Expected behavior

Can parse CIDR correctly.

Actual behavior

not yet

Regression?

No response

Known Workarounds

No response

Configuration

.NET 8
Windows, x64

Other information

No response

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Issue Details

---

Description

The official documentation is too succinct that doesn't have much meaningful content.

Now, IPNetwork can parse simple CIDR string like this IPNetwork.TryParse("192.168.1.0/24", out var _)

but failed to parse

IPNetwork.TryParse("2001:0db8::1/64", out var _);

Is there a plan to improve this functionality?

Reproduction Steps

https://dotnetfiddle.net/hV7H5g

You can try this dotnet fiddle

Expected behavior

Can parse CIDR correctly.

Actual behavior

not yet

Regression?

No response

Known Workarounds

No response

Configuration

.NET 8
Windows, x64

Other information

No response

Author:	changhuixu
Assignees:	-
Labels:	area-System.Net
Milestone:	-

[antonfirsov]

As the docs note

This type disallows arbitrary IP-address/prefix-length CIDR pairs. BaseAddress must be defined so that all bits after the network prefix are set to zero. In other words, BaseAddress is always the first usable address of the network. The constructor and the parsing methods will throw in case there are non-zero bits after the prefix.

@changhuixu is this limitation problematic for you?

[changhuixu]

My bad, it should be IPNetwork.TryParse("2001:0db8::/64", out var _); The last digit 1 is extra....

Thank you.