arp moved from [mac address] to [mac address]

[Eduardo Viruena Silva]

On Wed, 30 Apr 2003, Eduardo Viruena Silva wrote:

> On Tue, 29 Apr 2003 netgeek at speakeasy.net wrote:
>
> > The Internet connection is through AT&T Broadband, using DHCP. When I
> > boot, the DHCP connection is up correctly and all works. Within five
> > minutes a series of messages like
> >
> > pi /kernel: arp: 66.41.23.107 moved from 00:02:dd:30:0a:00 to 00:02:dd:30:4a:e2 on dc0
> > pi /kernel: arp: 66.41.23.107 moved from 00:02:dd:30:4a:e2 to 00:02:dd:30:0a:00 on dc0
> >
> > (The IP and MAC addresses are not accurate, sorry.)
> >
> > As soon as this happens I cannot access anything on the Internet (IP or
> > domain name), but the link lights stay on and ifconfig reports no
> > change.
> >
> > Are these related, and if so what is the fix?
>

Argh! creo que me perd'i en la primera parte... est'as conectado a
un servicio de AT&T, el cual te da tu direcci'on IP mediante DHCP.

De cualquier manera, alguien se est'a robando tu IP, aunque sea por
unos segundos.  Los numerillos que reportas son la direcci'on MAC
de las tarjetas de red, una de ellas es la tuya.   Bastar'ia que
teclearas:

		ifconfig

para ver tus interfaces y sus direcciones MAC.  Seguro una de ellas
es la que reportas.

As'i que alguien est'a usando una direcci'on IP fija, de manera que,
cuando prende su computadora, le roba la IP a la tuya.  Luego se apaga
dicha m'aquina y t'u vuelves a la normalidad.

Tendr'ias que reportar este hecho con tu proveedor de servicio de
Internet.  Ellos podr'ian ver quien est'a usando la direcci'on fija
y pedirle que ya no lo haga.


> >
> > This isn't my computer, and I'm 40 minutes away from it, so if this
> > question needs information it might be slow in coming.
> >
> > --
> > Mike Burns <netgeek at speakeasy.net> <http://netgeek.ws>
> > "Gentlemen, you can't fight here -- this is the War Room!" - Dr. Strangelove
> > _______________________________________________
> > freebsd-questions at freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> > To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"
> >
>
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 /\  /\             *  /  ./#### \         *     \__|_/      |  |
/  \/  \               |   b#####|   *            _ |   __   |  |  __
=    .. \____          \ \_\#####/               / \|  /  \  |  | /\_\/
=          \_|    *     \___\###/       *        \_/\_/\__/\__\/_/\__/
 =   \______/           _
  | |