We encountered the same issue. However, not all snow leopard clients have this problem. Some of them work well; some of them could not get IP address from DHCP server occasionally; and some of them could not get IP address for the whole day. We contacted with Apple, they said they noticed this problem, and a new patch will be published in the middle or end of November.
Linchuan Yang Wireless Networking Analyst Network Assessment and Integration, IITS-Concordia University Tel: (514)848-2424 ext. 7664 -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Anthony Croome Sent: October 28, 2009 6:26 PM To: [email protected] Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs Update for my uni's problem. Our engineers are 100% convinced it's a MAC OS issue. We are not sure when the problem was introduced. When it is working we see the discover, offer, ack, in the DHCP daemon logs. Then at a random, intermittent time the DHCP daemon will decide to stop listening to dhcp packets being received on wireless, it logs the discover but not the offer. Wireshark is showing the offers being received but the DHCP daemon doesn't log them. There is no difference in the contents of the DHCP offer when it is working vs when it isn't. We are going to escalate it to Apple, as there isn't anything else we can see to try. Anthony -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Lee H Badman Sent: Friday, 16 October 2009 10:16 AM To: [email protected] Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs Has anyone gotten any "approved" suggestions for how to deal with these Apple issues from Cisco, beyond just trying things that seem to sometimes help? It is frustrating how the friendly and trouble-free Apple devices tend to be the least friendly and most troubling devices on the WLAN. A little bit of techno-irony to this:) -Lee ________________________________________ From: The EDUCAUSE Wireless Issues Constituent Group Listserv [[email protected]] On Behalf Of Jeffrey Sessler [[email protected]] Sent: Thursday, October 15, 2009 7:56 PM To: [email protected] Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs In 6.0, the code for world-mode didn't make it into the controller, but I believe it's in the AP's IOS commands, so it can be toggled but takes a little more effort. Jeff >>> Garry Peirce 10/15/09 2:16 PM >>> Perhaps I was erroneous in equating the two through a Cisco doc referencing DTPC to world-mode. 'When you enable Dynamic Transmit Power Control (DTPC), access points add channel and transmit power information to beacons. (On access points that run Cisco IOS software, this feature is called world mode.)' DTPC does appear to be CCX related, so it is likely irrelevant with regard to the mentioned Apple/Broadcom bug. Running 6.0.182, 'config 802.11a world-mode' is not an available option. 'config 802.11a dtpc' is. 'show 802.11a' will show the status of DTPC. I'll inquire w/Cisco. -- > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[email protected]] On Behalf Of Matt Grover > Sent: Thursday, October 15, 2009 2:51 PM > To: [email protected] > Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs > > It's under: > > show 802.11a(or b) > > -Matt > > Bob Richman wrote: > > So, how about the show command that displays the current setting? > > > > -----Original Message----- > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[email protected]] On Behalf Of Matt Grover > > Sent: Thursday, October 15, 2009 1:21 PM > > To: [email protected] > > Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs > > > > Actually, if you are talking about specifically "world-mode" it's > under: > > > > CLI: config 802.11a world-mode > > or config 802.11b world-mode > > > > -Matt > > > > > -- > ------------------------------------------------------------ > Matt Grover === University of Florida > Sr. Network Engineer === http://net-services.ufl.edu > [email protected] === Florida Lambda Rail > (352)273-1061 === http://www.flrnet.org/ > ------------------------------------------------------------ > > ********** > Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
