#17 Index error when parsing packet

[Greg Smythe]

For some reason I am getting an "Index was outside the bounds of the array" when I am parsing the packet. Please see attached screenshot. Any ideas on how I can prevent this?

Thanks,
Greg

[Chris Morgan]

Hi Greg.

What kind of packet is producing that exception? Invalid packets can result in exceptions being thrown. If it happens you can sometimes catch the packet using wireshark, thats how I normally debug issues like that.

[Greg Smythe]

It looks like an IPV6 packet. Since I'm not interested in those is there a way to just ignore them?

[Chris Morgan]

You could apply a packet filter at the sharppcap level to only include
ipv4 packets or you could just catch and ignore those exceptions if
thrown per c#.

Chris

On Fri, Jan 4, 2013 at 11:30 AM, Greg Smythe gsmythe@users.sf.net wrote:

It looks like an IPV6 packet. Since I'm not interested in those is there a
way to just ignore them?

Attachment: packet.net Error2.jpg (37.1 kB; image/jpeg)

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[bugs:#17] Index error when parsing packet

Status: open
Labels: index error
Created: Fri Jan 04, 2013 01:42 PM UTC by Greg Smythe
Last Updated: Fri Jan 04, 2013 01:47 PM UTC
Owner: nobody

For some reason I am getting an "Index was outside the bounds of the array"
when I am parsing the packet. Please see attached screenshot. Any ideas on
how I can prevent this?

Thanks,
Greg

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[Greg Smythe]

Thank you for your help, setting a filter fixed it right up!

Thanks,
Greg

[Douglas McLaughlin]

I, too, am getting this index error. The previous version of Packet.Net did not have this issue. I do need to see and parse TCPv6 packets so filtering them out is not an option.