Dyn updater configuration update#
Jan 23 12:27:07.883: HTTPDNS: Update add called for 195.162.29.1Ĭase No.2: Configuring Support for ĭ requires a similar configuration as our previous DDNS provider, however, the HTTP authentication string is slightly different, and you'll need to adjust your update interval to once a day rather than every 5 minutes. Jan 23 14:27:05.091: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access3, changed state to up
Jan 23 14:26:51.859: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access3, changed state to down For our example, we are using Public DNS servers: So, without further delay, here's how you can configure your Cisco router to register with the following DDNS providers:Ĭase No.1: Configuring Support For įirst step is to enable the DNS service and configure an IP name server (public DNS server) so it can successfully resolve Internet domain names. This way, the domain is always updated no matter how many times its IP address changes. As the ISP changes the IP address it assigned to the Cisco router, the router in turn will also update its DDNS provider. When an Internet host queries the DDNS provider for the domain, it will then point the host towards the public IP addresses currently assigned to the router, that is, 195.162.29.1. Once received, the DDNS provider updates the relevant DNS records, in our example,. It shows the simple logic of how DDNS works:įirstly we need to configure our Cisco router to register and send its periodical updates to the DDNS provider. Detailed Cisco router CLI commands and debugging information is included to ensure correct configuration and results are obtained.Ĭonsider the following network diagram. This article will show you how you can configure your Cisco router so it can support the DDNS service with and.
Dyn updater configuration Pc#
This eliminates the need for a static IP address, since the DDNS provider will automatically update its DNS records with your dynamic IP address every time it changes.įrom Cisco IOS version 12.4 onwards, Cisco routers have built-in support for a variety of DDNS providers, making it much easier and a more reliable alternative, as you no longer require a PC in your network that will run the DDNS provider's client program. DDNS providers allow the registeration and creation of Fully Qualified Domain Names (FQDN) that can be mapped to home or branch office Internet connections without cost. The solution to the above problem is named 'DDNS' - Dynamic DNS Service.
While this is the recommended setup for most companies doing serious business, it doesn't really apply to home users or small branch offices because of the increased cost for static IP addresses. If you had a domain name, e.g Firewall.cx, you would then map your static IP address to your domain (via DNS) so when you hit your domain name, you would be directed to your statically assigned IP address and access the resources you need. This ensures that your services are always reachable using the same IP address or domain name. Hosting your own webserver or email server would normaly require a static IP address from your ISP.
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