06-21-2009 05:58 PM - edited 07-03-2021 05:44 PM
Hi I have a basic question.
The WLC can be connected to a interface of a router (layer 3 interface)? For Example:
The Managment IP Address of the WLC is : 10.0.0.2, and the configuration of the interface of router is:
Interface giga 0/1
ip address 10.0.0.3 255.255.255.0
descripction ***WLC***
exit
This works ?
I have always connected the WLC port into a trunk port, for example:
Interface Giga 0/1
switchport trunk encapsulation dot1q
switchport mode trunk
description ***WLC***
Thanks
06-21-2009 06:17 PM
The WLC interfaces are 802.1Q Trunk so the switch-side should be a 802.1Q Trunk.
06-21-2009 06:22 PM
I know ...
But the WLC connected to leyer 3 interface .. work??
(WLC)----->---GigaEther0/1. IP Address 10.0.0.3--->(Router)
06-21-2009 07:32 PM
Cisco recommends the both sides to be 802.1Q Trunking. If the switchport is a routed sub-interface link, how do you think will this work?
Make sure the WLC is connected to a switch port and not a router/routed port.
06-27-2009 03:51 PM
This configuration will not work. The WLC is not capable of performing routing and as such cannot be connected to a routed interface. Each port is a dot1q and must be connected to a switchport.
07-05-2009 05:53 AM
It works - in a limited way.
There is no need for the WLC to be a router to be able to talk to a routed port. After all, a routed *Ethernet* port is just another broadcast domain, with some L3 on top of it. Connecting a WLC (by a single, untagged link) will work when the WLC uses the routed port as its default gateway, and of course one cannot haul any additional VLAN over to the WLC, so there is no way to bring more than one broadcast domain (the one that also bears the management and ap-manager interfaces) into the air^W^Wspace. So it's mostly useless for any long-term deployment, but may well suffice as an ad-hoc survey or lab setup.
HTH,
Andre.
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