Re: [ns] about bpf

[Xuan Chen <xuanc@ISI.EDU>]

On Thu, 14 Jun 2001, Yao Shu wrote:

> hi,all
>    I have some question about the bpf.
> 1,  $bpf open readonly fxp0  
> Does this mean that bpf read data from the interface "fxp0",
Yes,
> but what kind of interface is "fxp0"?
I am not that sure about the exact name, but I think you can find it from
your machine's config files.

> 2,  $bpf filter "icmp and dst $myaddr"
> What does it mean? Is filter a function?
Kind of, you may want to have a look at tcpdump.

Hope it helps,
-chen xuan

>  thanks 
> 
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-- 
Xuan Chen
USC/ISI