P-791R v2 Support Notes
the ISP assigns you a new IP, the P-791R v2 sends this IP to the DDNS server
for its updates.
19. What is DDNS wildcard? Does the P-791R v2 support DDNS
wildcard?
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.
20. Can the P-791R v2's SUA handle IPSec packets sent by the IPSec
gateway?
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.
21. How do I setup my P-791R 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:
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All contents copyright © 2007 ZyXEL Communications Corporation.
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