Filter
Top Products
Chapter 32 Application Patrol
ZyWALL USG 300 User’s Guide
550
• The outbound traffic flows from the connection initiator to the connection
responder.
• The inbound traffic flows from the connection responder to the connection
initiator.
For example, a LAN to WAN connection is initiated from LAN and goes to the WAN.
• Outbound traffic goes from a LAN zone device to a WAN zone device. Bandwidth
management is applied before sending the packets out a WAN zone interface on
the ZyWALL.
• Inbound traffic comes back from the WAN zone device to the LAN zone device.
Bandwidth management is applied before sending the traffic out a LAN zone
interface.
Figure 406 LAN to WAN Connection and Packet Directions
Outbound and Inbound Bandwidth Limits
You can limit an application’s outbound or inbound bandwidth. This limit keeps the
traffic from using up too much of the out-going interface’s bandwidth. This way
you can make sure there is bandwidth for other applications. When you apply a
bandwidth limit to outbound or inbound traffic, each member of the out-going
zone can send up to the limit. Take a LAN to WAN policy for example.
• Outbound traffic is limited to 200 kbps. The connection initiator is on the LAN so
outbound means the traffic traveling from the LAN to the WAN. Each of the WAN
zone’s two interfaces can send the limit of 200 kbps of traffic.
• Inbound traffic is limited to 500 kbs. The connection initiator is on the LAN so
inbound means the traffic traveling from the WAN to the LAN.
Figure 407 LAN to WAN, Outbound 200 kbps, Inbound 500 kbps
Connection
BWM
BWM
Outbound
Inbound
LAN
Inbound
Outbound
Outbound
500 kbps
200 kbps
200 kbps