[Bro] PPPoE Capture IP Layer Being Stripped
jlay at slave-tothe-box.net
Tue May 12 09:04:56 PDT 2015
On 2015-05-12 07:43 AM, Jason wrote:
> Good day all,
> One of my sites has all PPPoE traffic on the link I'm monitoring. The
> .log files are all generated correctly, but PCAP files end up with
> stripped IP layer information. This was easy to reproduce in bro
> 2.3.1 on Ubuntu by doing:
> tcpdump -nn -i ethX -w test.pcap
> bro -r test.pcap -w bro.pcap
> The tcpdump traffic in test.pcap looks fine, but the bro pcap comes up
> as Ethernet traffic with an unknown type.
> Is this a known bug? Or is there perhaps some configuration that
> needs to be changed in bro support this traffic?
> Thanks in advance,
> Bro mailing list
> bro at bro-ids.org
I run bro on ppp0, but I don't think I've seen this issue. Have you
tried having bro listen on the physical interface instead?
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