Re: tcpdump - performs what on initialization?

[Jefferson Ogata <Jefferson.Ogata () noaa gov>]

Guy Harris wrote:
> On Fri, Apr 11, 2003 at 12:34:47PM -0400, Jefferson Ogata wrote:
>
> > For one thing ifconfig down/up sends a gratuitous arp. If gratuitous arp 
> > solves the problem, you may have an IP address conflict on your LAN.
>
> That wouldn't explain why running tcpdump unwedges the interface,
> however, unless on the version of Linux his servers are running, doing
> so causes a gratuitious ARP.

Clearly, but perhaps in promiscuous mode his machine starts getting IP traffic 
again, responds to something, and this unwedges the interface.

--
Jefferson Ogata <Jefferson.Ogata () noaa gov>
NOAA Computer Incident Response Team (N-CIRT) <ncirt () noaa gov>

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