[Bro] nprobe, ngrep, tcpdump and tcpflow -like behavior of BRO ids?

[Panos Sakkos]

I am sorry for my incomplete question.
Here are the functionalities we need:

nprobe => convert raw network traffic to netflow format
ngrep => extract fields from incoming and outgoing HTTP traffic (url, referer, ...)
tcpdump => store size-limited TCP session (for an incoming SSH connection for example)
tcpflow => reconstruct TCP flows for given sessions (given source ip for example)

Thank you,
Panos

On Dec 12, 2011, at 4:19 PM, Seth Hall wrote:

> 
> On Dec 12, 2011, at 4:29 AM, Panos Sakkos wrote:
> 
>> I want to ask you if BRO ids can totally replace the following software:
>> 
>> 	• nprobe
>> 	• ngrep
>> 	• tcpdump
>> 	• and tcpflow 
> 
> Instead of pointing to tools and asking if Bro can replace them, could you explain tasks you need to accomplish with a network monitoring tool?  All of those tools have a lot of functionality and Bro certainly doesn't implement every bit of functionality they have. :)
> 
>  .Seth
> 
> --
> Seth Hall
> International Computer Science Institute
> (Bro) because everyone has a network
> http://www.bro-ids.org/
>