Getting invalid IP address.............

[C# Programming]

Hi all...

As calling an 'ipAddress' from class 'Sockaddr' to find the local IP address of my PC, it always return an IP address 255.255.255.255 for IPv4, and ffff.ffff.ffff.ffff for IPv6.

the class 'Sockaddr' belongs to 'SharpPcap-2.1.1', the implementation of the class is as follwo:

using System;
using System.Runtime.InteropServices;
using System.Net.NetworkInformation;

namespace SharpPcap.Containers
{
public class Sockaddr
{
public enum Type
{
AF_INET_AF_INET6,
HARDWARE,
UNKNOWN
}
public Type type;

static public System.Net.IPAddress ipAddress; // if type == AF_INET_AF_INET6
public PhysicalAddress hardwareAddress; // if type == HARDWARE

private int _sa_family;
public int sa_family
{
get { return _sa_family; }
}

public Sockaddr(PhysicalAddress hardwareAddress)
{
this.type = Type.HARDWARE;
this.hardwareAddress = hardwareAddress;
}

public Sockaddr(IntPtr sockaddrPtr)
{
// A sockaddr struct. We use this to determine the address family
PcapUnmanagedStructures.sockaddr saddr;

// Marshal memory pointer into a struct
saddr = (PcapUnmanagedStructures.sockaddr)Marshal.PtrToStructure(sockaddrPtr,
typeof(PcapUnmanagedStructures.sockaddr));

// record the sa_family for informational purposes
_sa_family = saddr.sa_family;

byte[] addressBytes;
if(saddr.sa_family == Pcap.AF_INET)
{
type = Type.AF_INET_AF_INET6;
PcapUnmanagedStructures.sockaddr_in saddr_in =
(PcapUnmanagedStructures.sockaddr_in)Marshal.PtrToStructure(sockaddrPtr,
typeof(PcapUnmanagedStructures.sockaddr_in));
ipAddress = new System.Net.IPAddress(saddr_in.sin_addr.s_addr);
} else if(saddr.sa_family == Pcap.AF_INET6)
{
type = Type.AF_INET_AF_INET6;
addressBytes = new byte[16];
PcapUnmanagedStructures.sockaddr_in6 sin6 =
(PcapUnmanagedStructures.sockaddr_in6)Marshal.PtrToStructure(sockaddrPtr,
typeof(PcapUnmanagedStructures.sockaddr_in6));
Array.Copy(sin6.sin6_addr, addressBytes, addressBytes.Length);
ipAddress = new System.Net.IPAddress(addressBytes);
} else if(saddr.sa_family == Pcap.AF_PACKET)
{
type = Type.HARDWARE;

PcapUnmanagedStructures.sockaddr_ll saddr_ll =
(PcapUnmanagedStructures.sockaddr_ll)Marshal.PtrToStructure(sockaddrPtr,
typeof(PcapUnmanagedStructures.sockaddr_ll));

byte[] hardwareAddressBytes = new byte[saddr_ll.sll_halen];
for(int x = 0; x < saddr_ll.sll_halen; x++)
{
hardwareAddressBytes[x] = saddr_ll.sll_addr[x];
}
hardwareAddress = new PhysicalAddress(hardwareAddressBytes); // copy into the PhysicalAddress class
} else
{
type = Type.UNKNOWN;

// place the sockaddr.sa_data into the hardware address just in case
// someone wants access to the bytes
byte[] hardwareAddressBytes = new byte[saddr.sa_data.Length];
for(int x = 0; x < saddr.sa_data.Length; x++)
{
hardwareAddressBytes[x] = saddr.sa_data[x];
}
hardwareAddress = new PhysicalAddress(hardwareAddressBytes);
}
}
}
}

Do anyone can help me ???

Thanks.................