vb.net中ping vb和net

怎样在VB.net中获得ping命令的结果

首先添加一模块，代码如下

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Option Explicit

Private Const IP_SUCCESS As Long = 0

Private Const IP_STATUS_BASE As Long = 11000

Private Const IP_BUF_TOO_SMALL As Long = (11000 + 1)

Private Const IP_DEST_NET_UNREACHABLE As Long = (11000 + 2)

Private Const IP_DEST_HOST_UNREACHABLE As Long = (11000 + 3)

Private Const IP_DEST_PROT_UNREACHABLE As Long = (11000 + 4)

Private Const IP_DEST_PORT_UNREACHABLE As Long = (11000 + 5)

Private Const IP_NO_RESOURCES As Long = (11000 + 6)

Private Const IP_BAD_OPTION As Long = (11000 + 7)

Private Const IP_HW_ERROR As Long = (11000 + 8)

Private Const IP_PACKET_TOO_BIG As Long = (11000 + 9)

Private Const IP_REQ_TIMED_OUT As Long = (11000 + 10)

Private Const IP_BAD_REQ As Long = (11000 + 11)

Private Const IP_BAD_ROUTE As Long = (11000 + 12)

Private Const IP_TTL_EXPIRED_TRANSIT As Long = (11000 + 13)

Private Const IP_TTL_EXPIRED_REASSEM As Long = (11000 + 14)

Private Const IP_PARAM_PROBLEM As Long = (11000 + 15)

Private Const IP_SOURCE_QUENCH As Long = (11000 + 16)

Private Const IP_OPTION_TOO_BIG As Long = (11000 + 17)

Private Const IP_BAD_DESTINATION As Long = (11000 + 18)

Private Const IP_ADDR_DELETED As Long = (11000 + 19)

Private Const IP_SPEC_MTU_CHANGE As Long = (11000 + 20)

Private Const IP_MTU_CHANGE As Long = (11000 + 21)

Private Const IP_UNLOAD As Long = (11000 + 22)

Private Const IP_ADDR_ADDED As Long = (11000 + 23)

Private Const IP_GENERAL_FAILURE As Long = (11000 + 50)

Private Const MAX_IP_STATUS As Long = (11000 + 50)

Private Const IP_PENDING As Long = (11000 + 255)

Private Const PING_TIMEOUT As Long = 500

Private Const WS_VERSION_REQD As Long = H101

Private Const MIN_SOCKETS_REQD As Long = 1

Private Const SOCKET_ERROR As Long = -1

Private Const INADDR_NONE As Long = HFFFFFFFF

Private Const MAX_WSADescription As Long = 256

Private Const MAX_WSASYSStatus As Long = 128

Public PingTime As Long

Private Type ICMP_OPTIONS

Ttl As Byte

Tos As Byte

Flags As Byte

OptionsSize As Byte

OptionsData As Long

End Type

Private Type ICMP_ECHO_REPLY

Address As Long

status As Long

RoundTripTime As Long

DataSize As Long

DataPointer As Long

Options As ICMP_OPTIONS

Data As String * 250

End Type

Private Type WSADATA

wVersion As Integer

wHighVersion As Integer

szDescription(0 To MAX_WSADescription) As Byte

szSystemStatus(0 To MAX_WSASYSStatus) As Byte

wMaxSockets As Long

wMaxUDPDG As Long

dwVendorInfo As Long

End Type

Public Declare Function timeGetTime Lib "winmm.dll" () As Long

Private Declare Function WSAStartup Lib "wsock32" (ByVal wVersionRequired As Long, lpWSADATA As WSADATA) As Long

Private Declare Function WSACleanup Lib "wsock32" () As Long

Private Declare Function IcmpCreateFile Lib "icmp.dll" () As Long

Private Declare Function inet_addr Lib "wsock32" (ByVal s As String) As Long

Private Declare Function IcmpCloseHandle Lib "icmp.dll" (ByVal IcmpHandle As Long) As Long

Private Declare Function IcmpSendEcho Lib "icmp.dll" (ByVal IcmpHandle As Long, ByVal DestinationAddress As Long, ByVal RequestData As String, ByVal RequestSize As Long, ByVal RequestOptions As Long, ReplyBuffer As ICMP_ECHO_REPLY, ByVal ReplySize As Long, ByVal Timeout As Long) As Long

'Private Declare Function WSAGetLastError Lib "wsock32" () As Long

'Private Declare Function gethostname Lib "wsock32" (ByVal szHost As String, ByVal dwHostLen As Long) As Long

'Private Declare Function gethostbyname Lib "wsock32" (ByVal szHost As String) As Long

'Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (xDest As Any, xSource As Any, ByVal nbytes As Long)

Private Function GetStatusCode(status As Long) As String

On Error GoTo ErrLine

Dim Msg As String

GetStatusCode = ""

Select Case status

Case IP_SUCCESS: Msg = "ip success"

Case INADDR_NONE: Msg = "inet_addr: bad IP format"

Case IP_BUF_TOO_SMALL: Msg = "ip buf too_small"

Case IP_DEST_NET_UNREACHABLE: Msg = "ip dest net unreachable"

Case IP_DEST_HOST_UNREACHABLE: Msg = "ip dest host unreachable"

Case IP_DEST_PROT_UNREACHABLE: Msg = "ip dest port unreachable"

Case IP_DEST_PORT_UNREACHABLE: Msg = "ip dest port unreachable"

Case IP_NO_RESOURCES: Msg = "ip no resources"

Case IP_BAD_OPTION: Msg = "ip bad option"

Case IP_HW_ERROR: Msg = "ip hw_error"

Case IP_PACKET_TOO_BIG: Msg = "ip packet too_big"

Case IP_REQ_TIMED_OUT: Msg = "ip req timed out"

Case IP_BAD_REQ: Msg = "ip bad req"

Case IP_BAD_ROUTE: Msg = "ip bad route"

Case IP_TTL_EXPIRED_TRANSIT: Msg = "ip ttl expired transit"

Case IP_TTL_EXPIRED_REASSEM: Msg = "ip ttl expired reassem"

Case IP_PARAM_PROBLEM: Msg = "ip param_problem"

Case IP_SOURCE_QUENCH: Msg = "ip source quench"

Case IP_OPTION_TOO_BIG: Msg = "ip option too_big"

Case IP_BAD_DESTINATION: Msg = "ip bad destination"

Case IP_ADDR_DELETED: Msg = "ip addr deleted"

Case IP_SPEC_MTU_CHANGE: Msg = "ip spec mtu change"

Case IP_MTU_CHANGE: Msg = "ip mtu_change"

Case IP_UNLOAD: Msg = "ip unload"

Case IP_ADDR_ADDED: Msg = "ip addr added"

Case IP_GENERAL_FAILURE: Msg = "ip general failure"

Case IP_PENDING: Msg = "ip pending"

Case PING_TIMEOUT: Msg = "ping timeout"

Case Else: Msg = "unknown msg returned"

End Select

GetStatusCode = Msg

Exit Function

ErrLine:

End Function

Private Function Ping(sAddress As String, sDataToSend As String, ECHO As ICMP_ECHO_REPLY) As Long

On Error GoTo ErrLine

Dim hPort As Long

Dim dwAddress As Long

dwAddress = inet_addr(sAddress)

If dwAddress INADDR_NONE Then

hPort = IcmpCreateFile()

If hPort Then

Call IcmpSendEcho(hPort, dwAddress, sDataToSend, Len(sDataToSend), 0, ECHO, Len(ECHO), PING_TIMEOUT)

Ping = ECHO.status

Call IcmpCloseHandle(hPort)

End If

Else

Ping = INADDR_NONE

End If

Exit Function

ErrLine:

Ping = INADDR_NONE

End Function

Public Function PingIP(ByVal szIp As String) As Boolean

On Error GoTo ErrLine

Dim WSAD As WSADATA

Dim ECHO As ICMP_ECHO_REPLY

Dim ret As Long

'Delay 150

PingIP = False

PingTime = Empty

If WSAStartup(WS_VERSION_REQD, WSAD) = IP_SUCCESS Then

ret = Ping(Trim(szIp), "tanaya", ECHO)

PingTime = ECHO.RoundTripTime

If InStr(1, GetStatusCode(ret), "success") 0 Then

WSACleanup

PingIP = True

PingTime = ECHO.RoundTripTime

Exit Function

End If

End If

Exit Function

ErrLine:

End Function

然后建立一窗体，一command

Private Sub Command1_Click()

If PingIP("你需要访问的ip") = True Then

'你自己增加需要执行的代码

else

'增加不联网时需要执行的代码

end if

VB.net 如何ping一个ip地址并获取延迟值？

Dim b As Boolean = My.Computer.Network.Ping("192.168.1.1", 1000) '返回ping结果，true表示通，false表示不通，1000表示1000毫秒内返回结果 

If b = True Then '指定时间内ping通

Shell("cmd /c ping 192.168.1.1  C:\time.txt") '在C盘time.txt文件中保存ping的结果

Else '超时

MsgBox("999") '弹出999提示

End If

在vb.net里 ping域名得到ip地址 怎么弄

我来说说...i试试看行不行。Option Explicit

Const SYNCHRONIZE = H100000

Const INFINITE = HFFFF

Const WAIT_OBJECT_0 = 0

Const WAIT_TIMEOUT = H102

Private Declare Function SendMessage Lib "User32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long

Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long

Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long

Private Sub cmdClear_Click()

txtIP.Text = ""

txtNumber.Text = ""

Open "C:\log.txt" For Output As #1

Close #1

txtOutPut.Text = ""

End Sub

Private Sub cmdPing_Click()

Dim ShellX As String

Dim lPid As Long

Dim lHnd As Long

Dim lRet As Long

Dim VarX As String

frmMain.MousePointer = 11

If txtIP.Text "" Then

DoEvents

ShellX = Shell("command.com /c ping -n " txtNumber.Text " " txtIP.Text " C:\log.txt", vbHide)

lPid = ShellX

If lPid 0 Then

lHnd = OpenProcess(SYNCHRONIZE, 0, lPid)

If lHnd 0 Then

lRet = WaitForSingleObject(lHnd, INFINITE)

CloseHandle (lHnd)

End If

Beep

frmMain.MousePointer = 0

Open "C:\log.txt" For Input As #1

txtOutPut.Text = Input(LOF(1), 1)

Close #1

End If

Else

frmMain.MousePointer = 0

VarX = MsgBox("You have not entered an ip address or the number of times you want to ping.", vbCritical, "Error has occured")

End If

End Sub

求大神指点vb.net 怎么判断 网络是否连接 和取本机局域网IP和互联网IP

你这段代码可以获得该主机名下的所有ip，每个ip地址都是有类型簇的，可以区别本地地址和网络地址、ip6地址。

你获取索引为0的ip，不一定是正确的网络地址，它有时顺序在中间，在后面。

应该获取所有ip，再通过ip地址簇类型区分

判断连接本身有一个函数，不过有时没联网也是真。

可以用ping，ping百度、ping访问速度快、不经常维护断线的网络主机。

用VB.NET怎么编一个ping的程序

详见下面代码

Dim m_ping As New System.Net.NetworkInformation.Ping

Dim m_PingReply As System.Net.NetworkInformation.PingReply = m_ping.Send("192.168.1.1", 1000)'设置为自己要ping的ip地址

If m_PingReply.Status = Net.NetworkInformation.IPStatus.Success Then

MsgBox(m_PingReply.RoundtripTime)'返回网络延迟

Else'返回不通的原因

MsgBox(m_PingReply.Status.ToString)

End If

如何在VB中使用PING命令

'标准模块

Option Explicit

Public Const IP_STATUS_BASE = 11000

Public Const IP_SUCCESS = 0

Public Const IP_BUF_TOO_SMALL = (11000 + 1)

Public Const IP_DEST_NET_UNREACHABLE = (11000 + 2)

Public Const IP_DEST_HOST_UNREACHABLE = (11000 + 3)

Public Const IP_DEST_PROT_UNREACHABLE = (11000 + 4)

Public Const IP_DEST_PORT_UNREACHABLE = (11000 + 5)

Public Const IP_NO_RESOURCES = (11000 + 6)

Public Const IP_BAD_OPTION = (11000 + 7)

Public Const IP_HW_ERROR = (11000 + 8)

Public Const IP_PACKET_TOO_BIG = (11000 + 9)

Public Const IP_REQ_TIMED_OUT = (11000 + 10)

Public Const IP_BAD_REQ = (11000 + 11)

Public Const IP_BAD_ROUTE = (11000 + 12)

Public Const IP_TTL_EXPIRED_TRANSIT = (11000 + 13)

Public Const IP_TTL_EXPIRED_REASSEM = (11000 + 14)

Public Const IP_PARAM_PROBLEM = (11000 + 15)

Public Const IP_SOURCE_QUENCH = (11000 + 16)

Public Const IP_OPTION_TOO_BIG = (11000 + 17)

Public Const IP_BAD_DESTINATION = (11000 + 18)

Public Const IP_ADDR_DELETED = (11000 + 19)

Public Const IP_SPEC_MTU_CHANGE = (11000 + 20)

Public Const IP_MTU_CHANGE = (11000 + 21)

Public Const IP_UNLOAD = (11000 + 22)

Public Const IP_ADDR_ADDED = (11000 + 23)

Public Const IP_GENERAL_FAILURE = (11000 + 50)

Public Const MAX_IP_STATUS = 11000 + 50

Public Const IP_PENDING = (11000 + 255)

Public Const PING_TIMEOUT = 200

Public Const WS_VERSION_REQD = H101

Public Const WS_VERSION_MAJOR = WS_VERSION_REQD \ H100 And HFF

Public Const WS_VERSION_MINOR = WS_VERSION_REQD And HFF

Public Const MIN_SOCKETS_REQD = 1

Public Const SOCKET_ERROR = -1

Public Const MAX_WSADescription = 256

Public Const MAX_WSASYSStatus = 128

Public Type ICMP_OPTIONS

Ttl As Byte

Tos As Byte

Flags As Byte

OptionsSize As Byte

OptionsData As Long

End Type

Dim ICMPOPT As ICMP_OPTIONS

Public Type ICMP_ECHO_REPLY

Address As Long

status As Long

RoundTripTime As Long

DataSize As Integer

Reserved As Integer

DataPointer As Long

Options As ICMP_OPTIONS

Data As String * 250

End Type

Public Type HOSTENT

hName As Long

hAliases As Long

hAddrType As Integer

hLen As Integer

hAddrList As Long

End Type

Public Type WSADATA

wVersion As Integer

wHighVersion As Integer

szDescription(0 To MAX_WSADescription) As Byte

szSystemStatus(0 To MAX_WSASYSStatus) As Byte

wMaxSockets As Integer

wMaxUDPDG As Integer

dwVendorInfo As Long

End Type

Public Declare Function IcmpCreateFile Lib "icmp.dll" () As Long

Public Declare Function IcmpCloseHandle Lib "icmp.dll" (ByVal IcmpHandle As Long) As Long

Public Declare Function IcmpSendEcho Lib "icmp.dll" (ByVal IcmpHandle As Long, ByVal DestinationAddress As Long, ByVal RequestData As String, ByVal RequestSize As Integer, ByVal RequestOptions As Long, ReplyBuffer As ICMP_ECHO_REPLY, ByVal ReplySize As Long, ByVal Timeout As Long) As Long

Public Declare Function WSAGetLastError Lib "WSOCK32.DLL" () As Long

Public Declare Function WSAStartup Lib "WSOCK32.DLL" (ByVal wVersionRequired As Long, lpWSADATA As WSADATA) As Long

Public Declare Function WSACleanup Lib "WSOCK32.DLL" () As Long

Public Declare Function gethostname Lib "WSOCK32.DLL" (ByVal szHost As String, ByVal dwHostLen As Long) As Long

Public Declare Function gethostbyname Lib "WSOCK32.DLL" (ByVal szHost As String) As Long

Public Declare Sub RtlMoveMemory Lib "kernel32" (hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long)

Public Function GetStatusCode(status As Long) As String

Dim msg As String

Select Case status

Case IP_SUCCESS: msg = "ip success"

Case IP_BUF_TOO_SMALL: msg = "ip buf too_small"

Case IP_DEST_NET_UNREACHABLE: msg = "ip dest net unreachable"

Case IP_DEST_HOST_UNREACHABLE: msg = "ip dest host unreachable"

Case IP_DEST_PROT_UNREACHABLE: msg = "ip dest prot unreachable"

Case IP_DEST_PORT_UNREACHABLE: msg = "ip dest port unreachable"

Case IP_NO_RESOURCES: msg = "ip no resources"

Case IP_BAD_OPTION: msg = "ip bad option"

Case IP_HW_ERROR: msg = "ip hw_error"

Case IP_PACKET_TOO_BIG: msg = "ip packet too_big"

Case IP_REQ_TIMED_OUT: msg = "ip req timed out"

Case IP_BAD_REQ: msg = "ip bad req"

Case IP_BAD_ROUTE: msg = "ip bad route"

Case IP_TTL_EXPIRED_TRANSIT: msg = "ip ttl expired transit"

Case IP_TTL_EXPIRED_REASSEM: msg = "ip ttl expired reassem"

Case IP_PARAM_PROBLEM: msg = "ip param_problem"

Case IP_SOURCE_QUENCH: msg = "ip source quench"

Case IP_OPTION_TOO_BIG: msg = "ip option too_big"

Case IP_BAD_DESTINATION: msg = "ip bad destination"

Case IP_ADDR_DELETED: msg = "ip addr deleted"

Case IP_SPEC_MTU_CHANGE: msg = "ip spec mtu change"

Case IP_MTU_CHANGE: msg = "ip mtu_change"

Case IP_UNLOAD: msg = "ip unload"

Case IP_ADDR_ADDED: msg = "ip addr added"

Case IP_GENERAL_FAILURE: msg = "ip general failure"

Case IP_PENDING: msg = "ip pending"

Case PING_TIMEOUT: msg = "ping timeout"

Case Else: msg = "unknown msg returned"

End Select

GetStatusCode = CStr(status)  " [ "  msg  " ]"

End Function

Public Function HiByte(ByVal wParam As Integer)

HiByte = wParam \ H1 And HFF

End Function

Public Function LoByte(ByVal wParam As Integer)

LoByte = wParam And HFF

End Function

Public Function Ping(szAddress As String, ECHO As ICMP_ECHO_REPLY) As Long

Dim hPort As Long

Dim dwAddress As Long

Dim sDataToSend As String

Dim iOpt As Long

sDataToSend = "Echo This"

dwAddress = AddressStringToLong(szAddress)

hPort = IcmpCreateFile()

If IcmpSendEcho(hPort, dwAddress, sDataToSend, Len(sDataToSend), 0, ECHO, Len(ECHO), PING_TIMEOUT) Then

'the ping succeeded,

'.Status will be 0

'.RoundTripTime is the time in ms for the ping to complete,

'.Data is the data returned (NULL terminated)

'.Address is the Ip address that actually replied

'.DataSize is the size of the string in .Data

Ping = ECHO.RoundTripTime

Else

Ping = ECHO.status * -1

End If

Call IcmpCloseHandle(hPort)

End Function

Function AddressStringToLong(ByVal tmp As String) As Long

Dim i As Integer

Dim parts(1 To 4) As String

i = 0

'we have to extract each part of the

'123.456.789.123 string, delimited by

'a period

While InStr(tmp, ".")  0

i = i + 1

parts(i) = Mid(tmp, 1, InStr(tmp, ".") - 1)

tmp = Mid(tmp, InStr(tmp, ".") + 1)

Wend

i = i + 1

parts(i) = tmp

If i  4 Then

AddressStringToLong = 0

Exit Function

End If

AddressStringToLong = Val("H"  Right("00"  Hex(parts(4)), 2)  _

Right("00"  Hex(parts(3)), 2)  _

Right("00"  Hex(parts(2)), 2)  _

Right("00"  Hex(parts(1)), 2))

End Function

Public Function SocketsCleanup() As Boolean

Dim X As Long

X = WSACleanup()

If X  0 Then

MsgBox "Windows Sockets error "  Trim$(Str$(X))  " occurred in Cleanup.", vbExclamation

SocketsCleanup = False

Else

SocketsCleanup = True

End If

End Function

Public Function SocketsInitialize() As Boolean

Dim WSAD As WSADATA

Dim X As Integer

Dim szLoByte As String, szHiByte As String, szBuf As String

X = WSAStartup(WS_VERSION_REQD, WSAD)

If X  0 Then

MsgBox "Windows Sockets for 32 bit Windows "  "environments is not successfully responding."

SocketsInitialize = False

Exit Function

End If

If LoByte(WSAD.wVersion)  WS_VERSION_MAJOR Or (LoByte(WSAD.wVersion) = WS_VERSION_MAJOR And HiByte(WSAD.wVersion)  WS_VERSION_MINOR) Then

szHiByte = Trim$(Str$(HiByte(WSAD.wVersion)))

szLoByte = Trim$(Str$(LoByte(WSAD.wVersion)))

szBuf = "Windows Sockets Version "  szLoByte  "."  szHiByte

szBuf = szBuf  " is not supported by Windows "  "Sockets for 32 bit Windows environments."

MsgBox szBuf, vbExclamation

SocketsInitialize = False

Exit Function

End If

If WSAD.wMaxSockets  MIN_SOCKETS_REQD Then

szBuf = "This application requires a minimum of "  Trim$(Str$(MIN_SOCKETS_REQD))  " supported sockets."

MsgBox szBuf, vbExclamation

SocketsInitialize = False

Exit Function

End If

SocketsInitialize = True

End Function

'窗体代码

Dim ECHO As ICMP_ECHO_REPLY

Dim pos As Integer

Private Sub Command1_Click()

Call Ping(Text2.Text, ECHO)

Text1(0) = GetStatusCode(ECHO.status)

Text1(1) = ECHO.Address

Text1(2) = ECHO.RoundTripTime  " ms"

Text1(3) = ECHO.DataSize  " bytes"

If Left$(ECHO.Data, 1)  Chr$(0) Then

pos = InStr(ECHO.Data, Chr$(0))

Text1(4) = Left$(ECHO.Data, pos - 1)

End If

Text1(5) = ECHO.DataPointer

End Sub