System information

 Layer 3 Tunnel
Working Principles of Basic Functions
Layer 3 Tunnel
 When configuring L3 tunnel mode, the switch establishes an IP-IP tunnel to
the APs that are configured for tunneling mode.
 The tunnel will encapsulate IPv4 packets inside an extra IPv4 packets.

Both the switch and the AP perform tunnel encapsulation and de
-

Both the switch and the AP perform tunnel encapsulation and de
-
capsulation.
• The AP uses the Unified Switch IP address as the destination IP in the outer IP
header and itself as the source IP.
•
The Unified Switch uses the AP IP address as the destination IP in the outer IP
•
The Unified Switch uses the AP IP address as the destination IP in the outer IP
header and itself as the source IP.
Tunnel bridge Tunnel bridge
EncapsulateDe-capsulate
DataIPDataIP
Extra
IP header
DataIP
82
IP header