[ net-snmp-Bugs-3454321 ] malformed udp packet sent by snmpd

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Bugs item #3454321, was opened at 2011-12-08 01:45
Message generated for change (Settings changed) made by tanders
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Category: agent
Group: solaris
>Status: Closed
>Resolution: Invalid
Priority: 5
Private: No
Submitted By: Mukul Gupta (guptamukul)
Assigned to: Nobody/Anonymous (nobody)
Summary: malformed udp packet sent by snmpd

Initial Comment:
snmpd 5.2.5.0 version is sending response with wrong UDP checksum error

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Comment By: Bill Fenner (fenner)
Date: 2011-12-11 06:29

Message:
The kernel, not net-snmp, is in charge of calculating UDP checksums.  If
your NIC supports checksum offload, the kernel doesn't bother calculating
it, so tcpdump/wireshark will claim that the checksum is bad.  Even if your
NIC doesn't support checksum offload, it's still not net-snmp's job to
calculate the UDP checksum, so this would be a kernel problem to report to
your vendor.

The thing to do is to validate the UDP checksum on the system *receiving*
the packet.

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You can respond by visiting: 
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