SubnetUtils6

java.lang.Object
- org.apache.commons.net.util.SubnetUtils6

```
public class SubnetUtils6
extends java.lang.Object
```
Performs subnet calculations given an IPv6 network address and a prefix length.
This is the IPv6 equivalent of SubnetUtils. Addresses are parsed and formatted using InetAddress, which accepts the text representations described in RFC 5952.

Since:

3.13.0

See Also:

SubnetUtils, RFC 5952 - A Recommendation for IPv6 Address Text Representation

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class SubnetUtils6.SubnetInfo
Contains IPv6 subnet summary information.

Constructor Summary

Constructors
Constructor	Description
`SubnetUtils6(java.lang.String cidrNotation)`	Constructs an instance from a CIDR-notation string, e.g., "2001:db8::1/64".
`SubnetUtils6(java.lang.String address, int prefixLength)`	Constructs an instance from an IPv6 address and prefix length.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`SubnetUtils6.SubnetInfo`	`getInfo()`	Gets a `SubnetUtils6.SubnetInfo` instance that contains subnet-specific statistics.
`java.lang.String`	`toString()`	Returns a summary of this subnet for debugging.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - SubnetUtils6
```
public SubnetUtils6(java.lang.String cidrNotation)
```
    Constructs an instance from a CIDR-notation string, e.g., "2001:db8::1/64".
    
    Parameters:
    
    cidrNotation - a CIDR-notation string, e.g., "2001:db8::1/64".
    
    Throws:
    
    java.lang.IllegalArgumentException - if the parameter is invalid.
  - SubnetUtils6
```
public SubnetUtils6(java.lang.String address,
                    int prefixLength)
```
    Constructs an instance from an IPv6 address and prefix length.
    
    Parameters:
    
    address - an IPv6 address, e.g., "2001:db8::1".
    
    prefixLength - the prefix length (0-128).
    
    Throws:
    
    java.lang.IllegalArgumentException - if the parameters are invalid.
- Method Detail
  - getInfo
```
public SubnetUtils6.SubnetInfo getInfo()
```
    Gets a SubnetUtils6.SubnetInfo instance that contains subnet-specific statistics.
    
    Returns:
    
    a new SubnetInfo instance.
  - toString
```
public java.lang.String toString()
```
    Returns a summary of this subnet for debugging.
    Delegates to SubnetUtils6.SubnetInfo.toString(). This is a diagnostic format and is not suitable for parsing. Use SubnetUtils6.SubnetInfo.getCidrSignature() to obtain a string that can be fed back into SubnetUtils6(String).
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    a multi-line debug string summarizing this subnet.