That sounds like a good rule of thumb. Speaking of the over-configuring comment, I've heard from another instructor that you can get docked for over-configuration.
So in your experience, putting in extra configs won't hurt unless something in the lab book mentions not configuring something or if it asks you to do the most efficient config? When I did my R&S IE, I was always told that over-configuration wasn't a problem unless explicitly called out in the lab book. In general, I can't imagine the proctor would be checking every last piece of config. But I guess it could be possible they'd have have a check for certain things that aren't supposed to be there. Maybe I'll just ask the proctor to see what they say (just to be sure). Jeff On Saturday, December 29, 2012, Jason Boyers wrote: > One aspect is that Cisco WGBs send IAPP messages to the WLC, which is how > the WLC learns about the wired clients behind the WGB. Non-Cisco WGBs > don't use IAPP, and therefore can't act as an intermediary to send > information about their clients. Of course, setting a Cisco WGB as a > "Universal WGB" would make it act like a non-Cisco WGB, so there wouldn't > be much difference there. I guess I would look for the following: > > 1) Multiple devices behind a non-Cisco or Universal WGB - Disable MAC to > IP Binding checks. > 2) Passive device(s) behind non-Cisco or Universal WGB - Enable Passive > Client > > Honestly, if I'm doing #1, I'm probably also doing #2 unless the wording > says to NOT enable Passive Client. Remember that over-configuration is > allowed, as long as it doesn't go against the specific requirements of the > test - read them carefully! > > Jason Boyers, CCIE #26024 (Wireless) > Blog: netboyers.wordpress.com > > > On Sat, Dec 29, 2012 at 5:14 PM, Jeff Rensink > <[email protected]<javascript:_e({}, 'cvml', '[email protected]');> > > wrote: > >> Thanks Jason. >> >> That type of scenario is pretty easy to identify as needing the passive >> client feature. I'm more thinking of when WGBs come into the picture. For >> instance, here is a snippet of of the 7.0.116.0 release notes regarding >> passive client. >> >> Non-Cisco WGB Support >> >> Starting in release 7.0.116.0, the controller software has been updated >> to accommodate non-Cisco workgroup bridges so that the controller can >> forward ARP, DHCP, and data traffic to and from the wired clients behind >> workgroup bridges. This processes is accomplished by enabling the passive >> client feature. To configure your controller to work with non-Cisco >> workgroup bridges, you must enable the passive clients feature. All traffic >> from the wired clients is routed through the work group bridge to the >> access point. >> >> >> >> So it seems that when WGBs get into the picture, both passive client and >> the MAC-to-IP binding features can come into play. When WGBs are >> mentioned, what's the best way to decide which feature is being asked about >> (or if both would be needed). >> >> >> Jeff >> >> >> >> >> On Sat, Dec 29, 2012 at 3:20 PM, Jason Boyers >> <[email protected]<javascript:_e({}, 'cvml', '[email protected]');> >> > wrote: >> >>> A passive client is that- passive. That means that it, generally >>> responds to traffic sent to it as opposed to initiating the traffic >>> exchange. You may see wireless printers and other devices that behave in >>> that manner. Without "passive client," those devices would potentially be >>> dropped at the User Idle Timeout because they didn't initiate traffic. >>> >>> Jason Boyers >>> CCIE wireless #26024 >>> On Dec 29, 2012 4:14 PM, "Jeff Rensink" >>> <[email protected]<javascript:_e({}, 'cvml', '[email protected]');>> >>> wrote: >>> >>>> Can anyone help to distinguish when to use the passive client feature >>>> and when to disable the MAC to IP binding check? They seem to be used in >>>> somewhat similar circumstances. >>>> >>>> The example that the fastlane workbook gives for disabling the MAC to >>>> IP binding check is with a universal gateway with multiple clients behind >>>> it. So the WLC can see more than 1 IP using a single MAC address. >>>> >>>> For using passive client feature, I've seen mention to scenarios like >>>> static IPed devices and non Cisco WGBs. I know it allows ARPs to flow >>>> between wired/wireless devices rather than being proxied by the WLC. >>>> >>>> I guess I'm confused over when one should be used over another. Are >>>> there key words I should be looking for that would point me to one or the >>>> other? >>>> >>>> Jeff Rensink >>>> >>>> _______________________________________________ >>>> For more information regarding industry leading CCIE Lab training, >>>> please visit www.ipexpert.com >>>> >>>> Are you a CCNP or CCIE and looking for a job? Check out >>>> www.PlatinumPlacement.com >>>> >>>> >> >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
