Owner`s manual
Continued
52
CoNfiguriNg THe dyNamiC dNs ClieNT
To start, rst check the “Enable Dynamic DNS client” box at the top of the page.
In the “Service type” drop down box, select the service you are using.
Some services support MX DNS records on dynamic DNS sub-domains. This helps ensure you
can get email to your host name. If your service supports this (dyndns.org is one that does,
others do as well), ll in your mail server’s host name in that eld. If you do not need an MX
record, or if your provider does not support them, just leave the eld blank.
Wildcards - If you want to enable wildcard on your dynamic DNS host name, check this
box. This means all host names not specically congured are redirected to your dynamic
DNS name. So if your dynamic DNS is example.homeip.net, and you enable wildcards,
www.example.homeip.net, mail.example.homeip.net, anything.example.homeip.net, etc. (i.e.
*.example.homeip.net) will all resolve to example.homeip.net.
The next two boxes are for your username and password. Enter your account information
from the Dynamic DNS provider.
Click Save. Your dynamic DNS host name should immediately be updated with your WAN IP
address. To verify this, ping your dynamic DNS host name. It should resolve to the IP address
of the WAN interface of your Cortexa. If not, check Diagnostics: System Logs for information
on why it failed.
Proxy arP
Proxy ARP means that a particular system, such as a rewall, will respond to ARP requests
for hosts other than itself. This can be used to make a rewall mostly disappear from the
systems on a network.
For example, if you had a /28 subnet from your ISP that is routed through the Cortexa
router, your router appears at the IP of x.x.x.97 with a network address of x.x.x.96 and
a broadcast address of x.x.x.111. This leaves a usable chunk of 14 addresses for your
hosts.
Cortexa 7202 ConfIguratIon utIlIty