Re: Question about pcap

[dragorn () kismetwireless net]

On Wed, Sep 29, 2010 at 06:52:32PM +0300, Nick Echidna wrote:
> Hello,
> I'm developing a program using pcap. I manage to successfully sniff the
> desired packets but I was wondering something that the man page doesn't make
> clear.
>
> Is it possible to block any specific network traffic? For example, block
> traffic through a specific port, like a firewall does.

No.  You could write a tool which generates firewall rules depending on
how you wanted to react, however.

You could implement a purely userspace bridge between two interfaces and
filter that way, but you probably wouldn't want to.

-m

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