Cisco Cisco Web Security Appliance S690 Guida Utente

Pagina di 446
 
2-4
AsyncOS 8.5 for Cisco Web Security Appliances User Guide
 
Chapter 2      Connect, Install, and Configure
  Gathering Setup Information
Step 3
(Optional) To monitor Layer-4 traffic, connect the Appliance to a TAP, switch, or hub after the proxy 
ports and before any device that performs network address translation (NAT) on client IP addresses:
Step 4
Connect external proxies upstream of the appliance to allow the external proxies to receive data from the 
appliance.
Next Step
Related Topics
Gathering Setup Information
You can use the worksheet below to record the configuration values you will need while running the 
System Setup Wizard. For additional information about each property, see 
.
Ethernet Port
Notes
T1/T2
To allow Layer-4 Traffic Monitor blocking, put Layer 4Traffic Monitor on the same 
network as the Web Security appliance.
Recommended configuration: 
Device: Network TAP:
Connect T1 to network TAP to receive outbound client traffic.
Connect T2 to network TAP to receive inbound internet traffic.
Other options:
Device: Network TAP:
Use duplex cable on T1 to receive inbound and outbound traffic.
Device: Spanned or mirrored port on a switch
Connect T1 to receive outbound client traffic and connect T2 to receive inbound 
internet traffic.
(Less preferred) Connect T1 using a half or full duplex cable to receive both 
inbound and outbound traffic.
Device: Hub:
(Least preferred) Connect T1 using a duplex cable to receive both inbound and 
outbound traffic.
The appliance listens to traffic on all TCP ports on these interfaces.