You asked about better ways of containing this. The Aruba AirGroup has provided 
this functionality for years on the Aruba wireless system. 
You will likely find it less expensive than the Cisco alternative too.

Our users connect to our 802.1X secure SSID while the devices connect to our 
device SSID. You can restrict by username, AP, AP Group, firewall User Role, or 
any combination.

 
Bruce Osborne
Senior Network Engineer
Network Operations - Wireless
 (434) 592-4229
LIBERTY UNIVERSITY
Training Champions for Christ since 1971

-----Original Message-----
From: Christina Klam [mailto:ck...@ias.edu] 
Sent: Wednesday, May 31, 2017 9:36 AM
Subject: mDNS Containment with Meraki or WLC

All,

We are building housing for our emeritus faculty members.  These will be 
private townhouses on our campus that will be networked by us. We are now 
discussing whether the switches and AP should be Cisco or Meraki (I realize 
Meraki is now Cisco).  The decision point lies in how the two product lines 
handle BonJour/mDNS.  

GOAL:   Residents in one townhouse can only connect to the mDNS devices located 
in their homes or devices associated with their userid.  Ideally, we want to 
broadcast the same SSIDs as on campus to reduce confusion. 

Proposed Way of Doing This:  One way we are thinking this can be done is to use 
the info already in our self-registeration portal.  In that database, we have 
user name and mac address; so we will know which devices belong to whom.  Using 
this information, we hope to limit mDNS access to devices within the private 
homes to just the devices registered to that home.    


Questions:  Are there better ways of accomplishing the goal? Can this be done 
by either product?  I will be testing mDNS Service Groups on our WLC running 
8.2.121.0 this week.  Should we just create a SSID per home (thus containing 
the mDNS to each home.  Note:  This doesn't work on the WLCs as you are forced 
to use a single multicast VLAN used by ALL SSIDs) and broadcast a shared 
"guest" SSID among the townhouses so that people can visit each other?  How 
have you addressed this issue on your Residence Halls?

Thank you,
Christina Klam
Network Engineer
Institute for Advanced Study
609-734-8154
ck...@ias.edu

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