WLC Auto Anchoring

Auto Anchoring is used when you are anchoring a WLAN to a particular controller in the mobility domain.

Most common use of Auto Anchor is Wireless Guest service where all guest traffic tunnel back to DMZ controller irrespective of where they associate to network.

In this we configure the WLC IP Address and MAC Address in each other’s mobility groups.

WLC GUI

Controller-> Mobility Groups

we need to make sure that both wlc has been added and control and data path is up.

WLC - IP Address
WLC - Mobility Group Name
WLC - MAC Address

Must be added for data and control path to go UP.
Once we are done with this, we now need to map the anchor in WLAN.

Go at the end of WLAN drop down menu select Mobility Anchors

Configure the same in anchor WLC (Anchor WLC itself is a Anchor so we need to select local in Anchor WLC)

After all these settings when clients connect to the SSID where an anchor is mapped, actual client details is seen in anchor controller.

Always remember Layer 2 security is handled by Foreign WLC and Layer 3 security is handled by Anchor WLC.

In an Auto Anchor mobility, Client point of attachment is known as Export Foreign and Client Point of presence is known as Export Anchor.