This is our old Q&A Site. Please post any new questions and answers at

I'm seeing 'Header checksum: 0xdfbb [validation disabled]' on the IP header checksum. Is there any way to make sure that validation is not disabled? Thanks!

asked 30 Sep '14, 18:53

Beldum's gravatar image

accept rate: 0%

Sure, just enable checking the checksum in the protocol preferences of IPv4. To do that, either click on the decode header line for IPv4 and use the pop up menu option to enable the check, or go to Edit -> Preferences -> Protocols -> IPv4 -> check "Validate the IPv4 checksum if possible"

permanent link

answered 01 Oct '14, 01:26

Jasper's gravatar image

Jasper ♦♦
accept rate: 18%

Thank you very much Jasper

(01 Oct '14, 20:22) Beldum
Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:


question asked: 30 Sep '14, 18:53

question was seen: 40,392 times

last updated: 01 Oct '14, 20:22

p​o​w​e​r​e​d by O​S​Q​A