How about the obvious, has your computer taken a lease from the 'rogue' server? Have you looked at the gateway address and tried to connect to it? Most routers are still set to admin/admin. With the gateway information you can narrow it down to which box or device as well. What kind of address is it? 10.? 192.? Do you have physical access to everything?
--- On Sun, 2/27/11, Jackman <[email protected]> wrote: > From: Jackman <[email protected]> > Subject: Re: [Eug-lug] Disabling a rogue DHCP server > To: "Eugene Unix and Gnu/Linux User Group" <[email protected]> > Date: Sunday, February 27, 2011, 3:23 PM > Unfortunately, while I'm able to > reject those offers, my connection is > still cutting out ever 1 minute or so. Have you ever > dealt with > something like this before? > > On Sun, Feb 27, 2011 at 3:10 PM, Alan <[email protected]> > wrote: > > On Sun, February 27, 2011 2:54 pm, Jackman wrote: > >> There is a rogue DHCP server on my local comcast > broadcast domain. > >> I've narrowed it down to a single mac address, but > the mac address > >> belongs to a modem which isn't the source of the > DHCP broadcasts -- > >> it's likely a home gateway plugged in backwards to > the modem. Is > >> there a way to cripple it or to ignore it's dhcp > offers so I can get > >> back online? > > > > If you are using dhclient, you can reject servers > based on IP address via, > > conveniently enough, the "reject" keyword. > > > > man dhclient.conf for more details. > > > > -ajb > > > > _______________________________________________ > > EUGLUG mailing list > > [email protected] > > http://www.euglug.org/mailman/listinfo/euglug > > > > > > -- > Andrew Jackman > [email protected] > > CONFIDENTIALITY NOTICE: This e-mail message, including any > attachments, is for the sole use of the intended > recipient(s) and may > contain confidential and privileged information. Any > unauthorized > review, use, disclosure, or distribution is prohibited. If > you are not > the intended recipient, please contact the sender by reply > e-mail and > destroy all copies of the original message. > _______________________________________________ > EUGLUG mailing list > [email protected] > http://www.euglug.org/mailman/listinfo/euglug > _______________________________________________ EUGLUG mailing list [email protected] http://www.euglug.org/mailman/listinfo/euglug
