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Help with VLAN design

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#1 silverwolf308


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Posted 09 April 2015 - 09:43 AM

I am new to VLAN architecture and need expert advise.



Router:               Sonicwall TZ105                    Connected to port 39

Switch:               Netgear GS752TP                


Wireless AP:      EnGenius EAP 300 Wireless AP  Connected to port 34

                           EnGenius EAP 300 Wireless AP  Connected to port 35


Objective:  Create a VLAN for guest wireless network using subnet that is isolated from the main network at


Notes: The EnGenius supports isolation but, when enabled, connected clients can no longer access the router at and do not receive DHCP.


This guest wireless environment will consist of lots of clients coming and going.  To support that DHCP demand a separate /24 subnet with a short lease is desired.


I have setup Sonicwall Guest Services according to the advice here. http://adminmatt.blogspot.com/2010/07/sonicwall-guest-services-with-third.html


The guest wireless on both APs has been assigned VLAN4.  I suspect I just need to setup the switch with the proper VLAN4 but have not been successful in configuring that interface. 


Thoughts?  Am I on the right track?  What am I doing wrong (aside from cross vendor implementation)?



Edited by silverwolf308, 09 April 2015 - 09:59 AM.

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#2 techmate5


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Posted 15 July 2015 - 02:08 AM



Guest vlan [] will not be able to communicate with router.

all devices connected to guest vlan will try to communicate with router on [ gateway ]

There wont be communication as both have different subnet

#3 techmate5


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Posted 15 July 2015 - 02:20 AM

There is  a solution for this but i am not sure your router supports it.


The router lan interface in this case, needs to be divided in to sub interfaces.


so there would be two sub interfaces on a single physical interface


sub-int 1  ip add

sub-int 2 ip add

#4 Wand3r3r


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Posted 15 July 2015 - 09:52 AM

Does not appear that unit supports sub interfaces.


I would suggest you reevaluate your objectives/requirements.  You do not require a separate ip scope if using vlans. You simply put your guest network in one vlan and your private network in another.  Both vlans exist on the switch port connecting to the sonicwall.

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