P-791R v2 Support Notes
Some servers providing Internet applications such as some mIRC servers do
not allow users to login using the same IP address. In this case it is better to
use Many-to-Many No Overload or One-to-One NAT mapping types, thus each
user login to the server using a unique global IP address. The following figure
illustrates this.
One rule configured for using Many-to-Many No Overload mapping type is
shown below.
We can also do this by configure threeOne-to-One mapping type rules.
9. Using the Dynamic DNS (DDNS)
• What is DDNS?
The DDNS service, an IP Registry provides a public central database where
information such as email addresses, hostnames, IPs etc. can be stored and
retrieved. This solves the problems if your DNS server uses an IP associated
with dynamic IPs.
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