ZyXEL Communications P-660HW-TX Manual De Usuario

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P-660HW-Tx v2 Series Support Notes
 
managements. Because the remote gateway checks this source port during 
connections, the port thus is not allowed to be changed.  
13. How do I setup my P-660HW-Tx v2 for routing IPSec packets over 
SUA?
 
For outgoing IPSec tunnels, no extra setting is required.  
For forwarding the inbound IPSec ESP tunnel, A 'Default' server set is required. 
You could configure it in Web Configurator, Advanced Setup, Network -> NAT 
-> Port Forwarding -> Default Server Setup: 
 
 
 
  It is because SUA makes your LAN appear as a single machine to the outside 
world. LAN users are invisible to outside users. So, to make an internal server 
for outside access, we must specify the service port and the LAN IP of this 
server in Web configurator. Thus SUA is able to forward the incoming packets 
to the requested service behind SUA and the outside users access the server 
using the P-660HW-Tx v2's WAN IP address. So, we have to configure the 
internal IPsec client as a default server (unspecified service port) when it acts 
a server gateway. 
14. What is Traffic Shaping? 
Traffic Shaping allocates the bandwidth to WAN dynamically and aims at 
boosting the efficiency of the bandwidth. If there are serveral VCs in the 
P-660HW-Tx v2 but only one VC activated at one time, the P-660HW-Tx v2 
allocates all the Bandwidth to the VC and the VC gets full bandwidth. If another 
VCs are activated later, the bandwidth is yield to other VCs after ward. 
15. Why do we perform traffic shaping in the P-660HW-Tx v2? 
The P-660HW-Tx v2 must manage traffic fairly and provide bandwidth 
allocation for different sorts of applications, such as voice, video, and data. All 
applications have their own natural bit rate. Large data transactions have a 
                                     
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