# about NLANR

**URL:** <https://community.zeek.org/t/about-nlanr/373>\
**Category:** Zeek\
**Created:** [June 3, 2003, 6:39am UTC](https://community.zeek.org/t/about-nlanr/373 "2003-06-03T06:39:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Vern](https://yyz1.discourse-cdn.com/flex011/user_avatar/community.zeek.org/vern/32/630_2.png) [@Vern](https://community.zeek.org/u/Vern)\
**Post date:** [June 3, 2003, 6:39am UTC](https://community.zeek.org/t/about-nlanr/373/1 "2003-06-03T06:39:52Z")

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> &nbsp;&nbsp;&nbsp;I used the trace file from NLANR to test Bro. But Bro does nothing but  
> report  
> bad checksum.

That's because those traces don't have any packet contents.

> What should I do , to make trace file available to Bro?

You should first consider whether it will be useful to analyze them with  
Bro, given a lack of contents.

If so, then "redef ignore\_checksums = T" will turn off the checksum tests.

&nbsp;&nbsp;&nbsp;&nbsp;Vern

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\
**Post date:** [May 6, 2022, 3:36pm UTC](https://community.zeek.org/t/about-nlanr/373/2 "2022-05-06T15:36:45Z")

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