Re: tcpdump problem with DAG card

["lei wei" <weilei1983 () gmail com>]

Hi Guy,

I recompiled tcpdump again and it's working now. :)  Thanks for the help.

I'm actually trying to get Argus working with DAG but argus still can't read
anything from it. Do you have any experience on it?

Lei


On 1/9/08, lei wei <weilei1983 () gmail com> wrote:
> Hi Guy,
>
> In config.h file:
> /* define if you have the DAG API */
> #define HAVE_DAG_API 1
>
> so I think it is set.
>
> The output of ldd on tcpdump is:
> $ ldd tcpdump
> tcpdump:
>         libcrypto.so.3 => /lib/libcrypto.so.3 (0x2810d000)
>         libc.so.5 => /lib/libc.so.5 (0x28204000)
>
> I don't know if or not libpcap should show up here. But I did notice the
> output of ./configure when I compiled tcpdump before, it outputs "checking
> for local pcap library... ./../libpcap-0.9.8/libpcap.a". That's exactly
> the dag-enabled libpcap I installed.
>
> Lei
>
>
>
>  On 1/9/08, Guy Harris <guy () alum mit edu> wrote:
> > On Jan 9, 2008, at 2:04 PM, lei wei wrote:
> >
> > > I'm trying to get tcpdump work with DAG interface. I installed the
> > > dag-enabled libpcap0.9.8 and tcpdump3.9.8 on a FreeBSD5.4 system.
> > > When I
> > > typed "tcpdump -i dag0", it gives me the error "tcpdump: BIOCSETIF:
> > > dag0:
> > > Device not configured". Could anyone give me any hint on what the
> > > problem
> > > is?
> >
> > The problem is that the libpcap being used by tcpdump isn't DAG-
> > enabled for some reason; it's trying to attach to adapter "dag0" using
> > BPF, not using the DAG code.
> >
> > Is HAVE_DAG_API set in config.h in the source directory for the
> > libpcap you built?  If so, what does "ldd" print when you run it on
> > the tcpdump you built?
> > -
> > This is the tcpdump-workers list.
> > Visit https://cod.sandelman.ca/ to unsubscribe.
>
>
>
> --
> Wei, Lei
> Department of Computer Science
> University of North Carolina at Chapel Hill,
> NC 27599-3175



-- 
Wei, Lei
Department of Computer Science
University of North Carolina at Chapel Hill,
NC 27599-3175
-
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