Author: René Jorissen

René Jorissen works as Solution Architect for QMonkeys in the Netherlands. Network Infrastructures are the primary focus. René works with equipment of multiple vendors, like HPE Networks, FortiNet, SentinelOne, Phished, Holm Security, Microsoft services and many more. René is Aruba Certified Edge Expert (ACEX #26), Aruba Certified Mobility Expert (ACMX #438), Aruba Certified ClearPass Expert (ACCX #725), Aruba Certified Design Expert (ACDX #760), CCNP R&S, FCNSP and Certified Ethical Hacker (CEF) certified. You can follow René on Twitter and LinkedIn.

Other stuff...

HPE switch and SSH filetransfer

René Jorissen on December 17, 2017 • 1 Comment • Tags: #filetransfer #hpe #ssh

Upgrading firmware on switches, routers and/or firewalls is a common task for network administrators. Normally I am used to downloading the new firmware from the console of the switch. I normally download the software from a (T)FTP server. While configuring a bunch of HPE 2930F switches for SSH access I noticed that I had the … Read More

Aruba Networks, Configuration Example

Aruba Airwave 8.2.4 and no CLI / shell access

René Jorissen on September 29, 2017 • 3 Comments • Tags: #access #airwave #aruba #shell

BE AWARE: reading and applying this blog is at your own risk. Following the below procedure could affect the support validity on your Aruba AirWave appliance. All AirWave firmware versions prior to 8.2.4 gave you shell access to the CentOS operating system. Once you upgrade from 8.2.3 to 8.2.4 you receive the message that the … Read More

ClearPass, Configuration Example

ClearPass & Sophos Mobile Control

René Jorissen on August 18, 2017 • 0 Comments • Tags: #clearpass #control #mobile #mssql #sophos

A lot of companies are using MDM to control and manage their (mobile) assets. By connecting the MDM solutions to HPE Aruba ClearPass an organization has the possibility for advanced context-aware access for a (mobile) device to the corporate network, wired and wireless. ClearPass supports multiple MDM solutions via built-in “External Context Servers”, like Airwatch … Read More

Cisco

Cisco Catalyst 2960X keeps crashing

René Jorissen on July 18, 2017 • 2 Comments • Tags: #asicphy #cscut90593 #error

Yesterday evening I had to troubleshoot a Cisco Catalyst 2960X switch stack, which didn’t return to normal after a reboot. The following error message was visible on the console: Error: ASIC/PHY POST failed. Cannot continue. %Software-forced reload This error message is listed as a bug (CSCut90593) at Cisco.com. Cisco describes a very “good” workaround: the switch … Read More

Cisco

Cisco WLC – HA SSO upgrade

René Jorissen on February 22, 2017 • 3 Comments • Tags: #cisco #sso #upgrade #wlc

“Is the upgrade procedure for a high-availability pair of Cisco Wireless LAN Controllers the same as the procedure for a single Cisco WLC?” Several customers asked me this questions and the answer is YES. First you check the current and backup firmware image. (Cisco Controller) >show boot Primary Boot Image…………………………. 8.2.111.0 (default) (active) Backup Boot Image………………………….. … Read More

Aruba Networks, ClearPass

ClearPass – dual interface and routing

René Jorissen on February 20, 2017 • 0 Comments • Tags: #clearpass #data #mgmt #routing

When you are using both interfaces on a ClearPass server (MGMT and DATA) than ClearPass uses the DATA interface to connect to services, like LDAPS to Active Directory, SMTP delivery, Active Directory joining and more. ClearPass uses the DATA interface as default gateway if no specific route is available on the MGMT interface. That being … Read More