With Layer 2 (L2) roaming, the wireless client roams between two APs that are part of the same subnetwork on the wired side. AP-based WDS provides this functionality. With AP-based WDS, you must configure the APs to be in the same VLAN.
With L3 roaming, the wireless client roams between two APs that reside in two different subnetworks. Therefore, the client roams between two different VLANs on the wired side. This removes the creation of VLANs that span the entire campus, which the AP-based WDS create. Client devices use multipoint generic routing encapsulation (mGRE) tunnels in order to roam to APs that reside on different L3 subnetworks. The roaming clients remain connected to your network without the need to change IP addresses.
The introduction of switch-based WDS and the WLSM facilitates Layer 3 (L3) fast secure roaming (FSR) and provides a highly scalable solution for L3 mobility in the campus. Switch-based WDS centralizes the functionality of WDS in the WLSM blade in a central switch and provides these benefits:
Increased WDS scalability The scalability increases to 300 APs and 6000 users across a campus wireless LAN (WLAN) network.
Simplified design and implementation No VLANs span the campus network. With the use of multipoint generic routing encapsulation (mGRE) architecture, no changes to the current network wired infrastructure are necessary.
Manageability for a large WLAN deployment This solution provides a single point of ingress for both WLAN control and user data into the wired network for which to apply security and quality of service (QoS) policies.
L3 mobility between floors and across multiple buildings
The ability to use advanced features on the Cisco Catalyst 6500, which includes other Catalyst 6500 service modules
Enhanced end-to-end security and QoS by integration with the Catalyst 6500 platform
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...