ZyXEL P-791R v2 Guia Do Utilizador

                                         

the ISP assigns you a new IP, the P-791R v2 sends this IP to the DDNS server 
for its updates. 

Some DDNS servers support the wildcard feature which allows the hostname, 
*.yourhost.dyndns.org, to be aliased to the same IP address as 
yourhost.dyndns.org. This feature is useful when there are multiple servers 
inside and you want users to be able to use things such as 
www.yourhost.dyndns.org and still reach your hostname. 

Yes, the P-791R v2 supports DDNS wildcard that http://www.dyndns.org/ 
supports. When using wildcard, you simply enter yourhost.dyndns.org in the 
Host field in Menu 1.1 Configure Dynamic DNS. 

Yes, the P-791R v2's SUA can handle IPSec ESP Tunneling mode. We know 
when packets go through SUA, SUA will change the source IP address and 
source port for the host. To pass IPSec packets, SUA must understand the 
ESP packet with protocol number 50, replace the source IP address of the 
IPSec gateway to the router's WAN IP address. However, SUA should not 
change the source port of the UDP packets which are used for key 
managements. Because the remote gateway checks this source port during 
connections, the port thus is not allowed to be changed. 

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: 

 

                                     

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