why it happens short packet. Which network device is problem?

2009-12-29 Thread Deric Kwok
Hi all

I got the following message.

UDP: bad checksum. From 67.204.26.203:1054 to 66.49.0.97:55290 ulen 43
UDP: short packet: From 67.55.92.141:23801 30368/46 to 66.49.0.0:24617

What is this meaning?

Which network device is problem?

Why it happens in the network?

Thank you



Re: why it happens short packet. Which network device is problem?

2009-12-29 Thread David Hiers
Send along a capture when you get the chance.

David


On Tue, Dec 29, 2009 at 4:56 AM, Deric Kwok deric.kwok2...@gmail.com wrote:
 Hi all

 I got the following message.

 UDP: bad checksum. From 67.204.26.203:1054 to 66.49.0.97:55290 ulen 43
 UDP: short packet: From 67.55.92.141:23801 30368/46 to 66.49.0.0:24617

 What is this meaning?

 Which network device is problem?

 Why it happens in the network?

 Thank you





Re: why it happens short packet. Which network device is problem?

2009-12-29 Thread Jon Lewis

On Tue, 29 Dec 2009, Deric Kwok wrote:


Hi all

I got the following message.

UDP: bad checksum. From 67.204.26.203:1054 to 66.49.0.97:55290 ulen 43
UDP: short packet: From 67.55.92.141:23801 30368/46 to 66.49.0.0:24617

What is this meaning?


Possibly a switch somewhere between the src and dst systems is doing 
fast-forward switching, and collisions are causing partial packets to be 
transmitted?


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 Jon Lewis   |  I route
 Senior Network Engineer |  therefore you are
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