FIX: SNMP Agent Breaks Up Variable Bindings List

ID: Q127870

The information in this article applies to:

Microsoft Win32 Software Development Kit (SDK), versions 3.1, 3.5, 3.51, 4.0

SUMMARY

When the SNMP agent receives a request for multiple variables in a single packet, for each entry in the variable bindings list the agent queries the required sub-agent (in this case, the .DLL acting as the agent) and packs up the results in a response variable bindings list and returns it in a single packet.

For example, say the variables requested are:


   ip.ipInReceives            (Internet MIB II )
   tcp.tcpMaxConn            (Internet MIB II )


   .iso.org.dod.internet.private.enterprises.lanmanager.lanmgr-2.common.
   comVersionMaj            (LanManager MIB II)


   icmp.icmpOutErrors         (Internet MIB II )

In this case, the agent queries the INETMIB2.DLL file twice, the LMMIB2.DLL once, and the INETMIB2.DLL once. Then it packs the results in a response packet and sends it to the requesting manager. There is no "snapshot" of the MIB.

STATUS

This problem was corrected in Windows NT version 4.0.

Additional query words:

Keywords : kbnetwork kbAPI kbNTOS310bug kbNTOS350bug kbNTOS351bug kbNTOS400fix kbSDKPlatform kbSNMP kbWinOS95bug kbSNMPAgent kbGrpNet
Version : WINDOWS:3.1,3.5,3.51,4.0
Platform : WINDOWS
Issue type : kbbug