Frank, that does make sense and perhaps I should check and see if the IP changes when switching between the two. Of course that would explain why a wired connection that has a static IP may not come up and take the place of the wireless that was turned off. Have to admit until I got a Mac, I mainly used dual NIC setups for small firewall boxes and everything was static. On Nov 1, 2009, at 9:36 AM, Frank Ventura wrote:
> > Scott, I think what is happening is that when the wireless obtains an > IP through a DHCP server that IP has a specific lease time that is > valid > even if the connection is lost. So if you obtain a lease which is > for 8 > hours and two hours later you drop that wireless connection the Mac > will > still hold onto that IP for another 6 hours or intil forced to update > its IP which is what you do when you switch to another connection > manually. I don't think the Mac will do an IP release and renew merely > by loosing one connection and picking up another as the DHCP server > and > leases are independent from the physical connection. > Frank > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Scott Howell > Sent: Saturday, October 31, 2009 6:09 PM > To: [email protected] > Subject: Re: switching to an Ethernet connection > > > Hmmm, that is a possibility, but not sure since I use dhcp. I wanted > to do a combination of dhcp and static but didn't have enough > machines to go through all that work. :) If I had a server and was > forwarding ports, I'd have a need to do this without a doubt and would > experiment more. > I am a little surprised in a way considering once the wireless is off, > the only other connection is the wired and I assumed it would default > back to that. However, you know what they say about assuming. :) > I wonder since the wireless I assume is dhcp and the connection is > lost, if the dhcp client doesn't go out looking for an active > connection to grab a new address and this forces the wired connection > online/active. > > On Oct 31, 2009, at 4:17 PM, Esther wrote: > >> >> Hi Scott, >> >> I used to use this method of turning AirPort off under Tiger, and >> would automatically get switched to Ethernet, but after migrating to >> Leopard (and a MacBook), when I switch off AirPort and change over to >> Ethernet I can't automatically get a connection. Wonder if this is >> because I set this up as a fixed IP address? It used to work for me, >> but now I have to force the connection to go through by changing from >> AirPort to Ethernet when I get the diagnostic prompt. >> >> Cheers, >> >> Esther >> >> Scott Howell wrote: >> >>> >>> Mark, if you turn AirPort off from the menu (where the clock etc. is >>> located) it will automatically switch to the wired port. I do this >>> quite often since I dont use the wireless while sitting at my desk. >>> On Oct 31, 2009, at 3:57 PM, Mark BurningHawk Baxter wrote: >>> >>>> >>>> I'm running Leopard on a MBP15; after plugging the cable into the >>>> router and Ethernet connection, what app do I use to switch from >>>> Airport to an Ethernet connection? I'm totally drawing a blank >>>> here. :) >>>> >>>> >>>> Mark BurningHawk Baxter >>>> >>>> Skype and Twitter: BurningHawk1969 >>>> MSN: [email protected] >>>> My home page: >>>> http://MarkBurningHawk.net/ >>>> >>>> >>>>> >>> >>> >>>> >> >> >>> > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.698 / Virus Database: 270.14.40/2471 - Release Date: > 10/31/09 03:53:00 > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/macvisionaries?hl=en -~----------~----~----~----~------~----~------~--~---
