Big Temporary Networks

William Herrin bill at herrin.us
Sat Sep 22 06:12:03 UTC 2012


On Fri, Sep 21, 2012 at 10:42 PM, Masataka Ohta
<mohta at necom830.hpcl.titech.ac.jp> wrote:
> William Herrin wrote:
>> that's getting close to omnipresent even in the low end APs. With this
>> feature enabled, stations are not allowed to talk to each other over
>> the wlan; they can only talk to hosts on the wired side of the lan.
>> The DAD packets are simply never sent to the other stations.
>
> You are saying to disable DAD, which is a violation of SLAAC.

We do that on some wired ethernets too. The Cisco configuration
command is "switchport protected." It helps control virus outbreaks if
machines designated clients can't talk to each other at layer 2,
regardless of how that annoys layer 3.

Does this bother you? Tough.

Regards,
Bill Herrin


-- 
William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004



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