SendARP

The SendARP function sends an ARP request to obtain the physical address that corresponds to the specified destination IP address.

DWORD SendARP(
IPAddr DestIP,// destination IP address
IPAddr SrcIP, // IP address of sender
PULONG pMacAddr, // returned physical address
PULONG PhyAddrLen // length of returned physical addr.);

Parameters

  • DestIP
    Specifies the destination IP address. The ARP request attempts to obtain the physical address that corresponds to this IP address.
  • SrcIP
    Specifies the IP address of the sender. This parameter is optional. The caller may specify zero for the parameter.
  • pMacAddr
    Pointer to a ULONG variable. On successful return, this variable contains the physical address that corresponds to the IP address specified by the DestIP parameter.
  • PhyAddrLen
    Pointer to a ULONG variable. On successful return, this variable contains the length of the physical address pointed to by the pMacAddr parameter.

Return Values

If the function succeeds, the return value is NO_ERROR.

If the function fails, use FormatMessage to obtain the message string for the returned error.

Remarks

For information about the IPAddr data type, see the Win32 Simple Data Types topic in the Platform SDK.

Requirements

Runs On Versions Defined in Include Link to
Windows CE OS 3.0 and later Iphlpapi.h   Iphlpapi.lib

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

CreateIpNetEntry, DeleteIpNetEntry, FlushIpNetTable, FormatMessage, SetIpNetEntry

 Last updated on Tuesday, July 13, 2004

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