all about networking
Reading Time: 4 minutesIn several meetings I get the question, how can I sent different DHCP options to different devices. The answer is to use the DHCP Vendor Class Identifier, DHCP option 60. Every device sends this option to the DHCP Server, and each DHCP Server can answer with specific options, depending on the option 60. I will … Read more
Reading Time: 2 minutesI often get the question, how to connect our devices to central, as we do not allow direct access to the internet. Here is the answer, we can send the dynamic proxy settings via DHCP to our IAP’s, running at least firmware version 8.4. DHCP Part for Dynamic Proxy Settings First, you need to prepare … Read more
Reading Time: 7 minutesAfter my last post about an IAP VPN, I’ve got a lot of questions regarding an IAP VPN guest solution, either with or without a captive portal. This post is all about an IAP VPN guest solution. I use a controller as the VPN concentrator and for the captive portal. You can use ClearPass for the … Read more
Reading Time: 27 minutesI’m using Microsoft Active Directory in my Lab for most of the tasks, like user authentication, DNS services, and DHCP. The windows VM is getting bigger and bigger so I decided to switch to Linux. The goal is, to have my user directory, my DNS zones and DHCP subnets managed in OpenLDAP. This post shows the … Read more
Reading Time: 7 minutesThis time is about some basic things. I will describe the unified Aruba controller discovery process. With the new unified software, the process is the same for IAP and CAP. Actually, with the new unified software, there is no IAP or CAP anymore. The Aruba discovery process is a simple process. The AP uses this … Read more
Reading Time: 4 minutesiMC is able to display a list of devices and IP addresses in use. To get the hostname of those devices as well, the iMC DHCP agent can grab those from the DHCP server. During my test of this function, I found some obstacles. In this article, I will share my experience and describe the installation … Read more
Reading Time: 4 minutesIn my last post, I described a simple way, to use the an external captive portal with the Aruba Instant solution. This time, I will change the lab environment to support bridged clients. I will also cover the scenario with the internal dhcp server and the situation with an individual certificate. External Captive Portal in Bridged … Read more
Reading Time: 2 minutesIn this post, I will show, how to Backup and Restore the Windows DHCP Server configuration and how to use this method to import the HP Vendor Specific Options for the HP AP’s. The configuration will be backuped as a text file, which can easily be modified to match the configuration of a new server. DHCP … Read more
Reading Time: 7 minutesIn this post, I will describe the captive portal capabilities on the HP unified controller, using iMC and UAM for remote authentication. Please read my earlier post about captive portal and local authentication, as I will reuse most of the configuration. For this howto I use again the latest and greatest firmware: Prepare the Controller for Captive Portal … Read more
Reading Time: 9 minutesIn this post I will share my experience with controller discovery in the network. You will get many information on how the AP can discover the controller and what network requirements needs to be meet to do that. I will cover the following topics: Where to place the AP’s in the network How the discovery process … Read more