H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 745)

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The guest access tunnel function is realized through an aggregation AC and an edge AC. The edge AC
is deployed in the internal network to provide access and authentication services to internal users. The
aggregation AC is deployed in the external network to process guest traffic. After a guest access tunnel
is established between the edge AC and aggregation AC, guests get online through the specified guest
VLAN, and guest traffic is forwarded to the aggregation AC.
Guest access tunnels support NAT traversal. If a NAT device is deployed between the edge AC and the
aggregation AC, a guest access tunnel can still be established.
Figure 753 Network diagram
Bonjour gateway
Support for this feature depends on the device model. For more information, see " About the H3C Access
Controllers Web-Based Configuration Guide ."
Bonjour is a set of zero configuration network protocols developed by Apple Inc based on Multicast DNS
(mDNS) services. Bonjour is designed to make network configuration easier for users. It enables Apple
devices to automatically advertise service information and enables clients to automatically discover
Apple devices without obtaining information about the devices.
However, Bonjour supports only link-local multicast addresses. To address this issue, the AC can act as
a Bonjour gateway to manage clients and devices providing services and forward mDNS packets across
VLANs, enabling Bonjour to be applied in large scale networks.
Benefits
Bonjour gateway provides the following benefits:
• mDNS traffic control.
• User-defined Bonjour policies to restrict services that can be used by clients.
• Inter-VLAN forwarding of mDNS packets, enhancing network availability.
• Bonjour policy application in views of multiple levels.