Date: Tue, 26 Jun 2001 18:13:18 -0700 From: "Crist Clark" <crist.clark@globalstar.com> To: "Ian P. Thomas" <ipthomas_77@yahoo.com> Cc: freebsd-questions@freebsd.org Subject: Re: cable connection problems Message-ID: <3B39332E.B639068@globalstar.com> References: <200106270049.UAA00734@scraemondaemon.my.domain>
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"Ian P. Thomas" wrote: > > You're a genius. After unplugging the modem and plugging it back in > after disconnecting it from the Windows box, I rebooted and got my IP. > Everything just works now. It seems that the cable modem was keeping the > MAC in memory when I put the modem into standby. There is no power off > button so the plug had to be yanked. Yep, back when I had coax cable Internet access I had to do something similar, but my modem had a "reset" button. > A quick question about firewalls. I had a firewall setup for my dial > up connection, but I knew the DNS IP's and used the following two lines to > let name lookups and responses go through > > $fwcmd add allow udp from any to 207.217.77.82 53 out xmit tun0 > $fwcmd add allow udp from 207.217.77.82 53 to any in recv tun0 > > How can I allow name lookups if I don't know the DNS IP's? Assuming that you trust yourself (you better), the other people using (probably true on a home system unless you have kids), and the software running on them (big "if" for many proprietary packages), you probably will allow arbitrary connections out. Just "keep state" on UDP (which is somewhat of an odd concept since UDP is stateless) and the problem is taken care of. -- Crist J. Clark Network Security Engineer crist.clark@globalstar.com Globalstar, L.P. (408) 933-4387 FAX: (408) 933-4926 The information contained in this e-mail message is confidential, intended only for the use of the individual or entity named above. If the reader of this e-mail is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any review, dissemination, distribution or copying of this communication is strictly prohibited. If you have received this e-mail in error, please contact postmaster@globalstar.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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