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This article was written based upon firmware version 5.0.0.
Many Internet service providers provide publicly routable dynamically assigned addresses to their customers. Because the Internet IP address provided from the ISP may change daily, it may be helpful to use a Dynamic DNS service to ensure that a user on the internet can always connect to the CradlePoint, even if they don’t know the current IP address.
For example, when connecting a Comcast cable modem to a CradlePoint MBR1400, Comcast provides you a public routable IP address (for example, 184.108.40.206). If remote web administration is enabled on port 8080 on the CradlePoint, a remote internet user would be able to access the CradlePoint’s administrative console by surfing to http://220.127.116.11:8080. Because this address may change without notice from Comcast, a remote user would not be able to log back in until they know the IP address.
Dynamic DNS services allow you to reserve a domain name or subdomain with a Dynamic DNS provider. Once the account with the Dynamic DNS provider has been set up, you can enter its settings inside the CradlePoint. Once the CradlePoint has the Dynamic DNS settings entered, then any time the address changes it will send an update request to the DNS server.
For example, you went to a Dynamic DNS provider like http://www.dyndns.org and created a username & password and reserved the subdomain “cradlepoint.dyndns.org”. Once you’ve entered these settings into the CradlePoint (as described below), a remote user on the internet would always be able to access the remote administrative console by surfing tohttp://cradlepoint.dyndns.org:8080 rather than having to know the current IP address.
Before entering any settings into the CradlePoint, it is necessary to create an account with a Dynamic DNS service provider. These companies provide free and/or paid Dynamic DNS services depending on your needs:
The CradlePoint also supports other custom servers that use the same settings as the above services.
After creating your account, you will need to know your host name, user name, and password. For our example, let’s assume that you are using these settings:
- Host name: cradlepoint.dyndns.org
- User name: cpusername
- Password: **********
To enter these settings into your Series 3 CradlePoint, follow these directions:
- Log into the CradlePoint’s administrative console, the default location is http://192.168.0.1. Click here if you are unsure of how to access the administration pages.
- Select “Network Settings” from the top menu, then click “DNS”.
- Under “Dynamic DNS Configuration”, place a checkmark next to “Enable Dynamic DNS”.
- Set the “Server Type” to the dynamic DNS service provider you are using
- Set the “Host name” to your host name (in this example we are using “cradlepoint.dyndns.org”), User name, password, and verify your password.
- Click “Apply” to save your changes.
After making this change, any user trying to connect to “cradlepoint.dyndns.org” will be redirected to whichever WAN IP address that the CradlePoint is currently using. If the CradlePoint changes its WAN IP address, as soon as it gets a new address it will automatically let the Dynamic DNS provider know the new IP address.
If your CradlePoint’s WAN IP address begins with a 10 (for example 10.34.121.12), then your Internet service provider is having you connect from behind Network Address Translation (NAT) instead of providing you a routable IP address.
If you have this type of account and need to be able to access the CradlePoint’s network from the Internet, contact your mobile provider to see if they can provide you a routable IP address instead.