Working with VSCs
VSC data flow
5-33
VSC on controlled AP
Ingress
The AP only handles traffic from wireless users, except for the MSM317 which can handle
traffic from both wireless and wired users. The SSID is the name of the wireless network with
which the user associates.
Features
Wireless security filters: Enables the AP to block traffic unless it is addressed to a
specific destination, such as the controller. See Wireless security filters on page 5-20.
Wireless MAC filter: Enables the AP to allow or deny access to the wireless network
based on for specific wireless user MAC addresses.
Wireless IP filter: Enables the AP to only allow wireless-to-wired LAN traffic for
specific destination IP addresses.
Egress
Bridged onto port 1+2 (untagged): Untagged user and authentication traffic is
bridged onto ports 1 and 2.
Bridged onto port 1 (VLAN): VLAN tagged traffic is bridged onto port 1 only. VLAN
tags can be assigned on a per-user basis via RADIUS attributes (see Defining account
profiles on page 10-32), or for all traffic on a VSC (see Assigning egress VLANs to a
group on page 6-30).
Client data tunnel: When this option is enabled, the AP creates a data tunnel to the
controller to carry all user traffic. See Client data tunnel on page 5-13.
For a more detailed explanation on how wireless traffic is routed between an AP and
controller, see Traffic flow for wireless users on page 7-6.
VSC on controller
Ingress
SSID (Client data tunnel): When a client data tunnel has been created between the AP
and the controller, all user traffic comes in on it. See Client data tunnel on page 5-13.
The tunnel is established using same interface on which the AP was discovered. (LAN or
Internet port).
SSID: SSID is retrieved using the location-aware function.
VLAN (LAN or Internet port): Traffic with a VLAN ID is handled by the VSC with a
matching VLAN definition. See Using multiple VSCs on page 5-36.
Untagged (LAN port): Untagged traffic on the LAN port may originate from wired
users, or MSM APs operating in autonomous mode.
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