Technical data

Bridging Versus Tunneling
© 2012 Meru Networks, Inc. Configuring an ESS 73
QoS rules and firewall rules
Dynamic Flow detection (for SIP/H.323)
Captive Portal
L3 mobility
Radius-based VLAN assignment
DHCP relay
Example of Bridged AP Deployment
The following figure is an example of remote bridged AP deployment. Notice that AP1
is configured for L2/local mode, AP2 is configured L2/Remote mode, AP3 is config-
ured L3/local mode, and AP4 is configured for L3/Remote AP mode. The controller,
AP1 and AP2 are located in the same 10.0.10.x/24 subnet, and AP3 and AP4 are in a
different subnet, 192.0.10.x/24. The blue and red lines correspond to L2 and L3 data
tunnel, respectively. Also, MS A through D are associated to AP 1 to 4, respectively.
Note that the MS C and MS D have different IP addresses, even though they are asso-
ciated to APs within the same IP subnet. The reason for this is because AP3 is config-
ured in local mode and is tunneled back to the controller at Layer 3. This example
demonstrates how a mobile client’s IP domain is changed by the dataplane bridged
or tunneled setting.
Figure 8: Example Remote AP Topology
192.0.10..x/24 Network
10.0.10..x/24 Network
AP 1
AP 4
AP 2
AP 3
MS A
10.0.10.100
MS B
10.0.10.101
MS C
10.0.10.102
MS D
192.0.10.100
MERU L2 tunnel
MERU L3 tunnel
Router