GetResponses Method

Description

Send a broadcast request and optionally wait for responses.

Syntax

Visual Basic
Public Function GetResponses( _ ByVal requestMessage As SnmpMessage, _ ByVal broadcastEP As IPEndPoint, _ ByVal localEP As IPEndPoint, _ Optional ByVal timeout As Integer = 1000, _ Optional ByVal threading As ThreadingConstants = threadingBlock, _ Optional ByVal userState As Variant _ ) As Variant

Visual Basic

Public Function GetResponses( _
   ByVal requestMessage As SnmpMessage, _
   ByVal broadcastEP As IPEndPoint, _
   ByVal localEP As IPEndPoint, _
   Optional ByVal timeout As Integer = 1000, _
   Optional ByVal threading As ThreadingConstants = threadingBlock, _
   Optional ByVal userState As Variant _
) As Variant

Parameters

requestMessage

Request to broadcast.

broadcastEP

Target broadcast address.

localEP

The local network interface to bind to for the operation. Can be NULL/Nothing.

timeout

Time to wait for responses to be received.

threading

Value	Description
threadingAsync	Implements Apartment Model threading without method blocking.
threadingBlock	Implements Apartment Model threading with method blocking (UI messages are processed).
threadingFree	Implements Free Model threading with method blocking (UI messages are not processed).

The threading model the control will use when executing this method.

userState

Object to pass to the Response event; can be NULL/Nothing.

Return Value

An array of SnmpMessage responses (if threading is threadingBlock or threadingFree), or NULL/Nothing if threading is threadingAsync.

Remarks

A new socket is created and used each time this method executes.

If localEP is specified, the socket is bound to the specified address family, address and port for the operation. If NULL/Nothing, a socket is created that uses a compatible 'Any' local interface and an ephemeral port.

When used asynchronously (threading is threadingAsync), the Response event will be raised providing access to each response after it has been received, and the Error event will be raised if any error occurs.

Common broadcast addresses:

IPv4 Broadcast: 255.255.255.255

IPv6 Broadcast equivalent (multicast): ff02::1