Cisco switch “inline power denied”

I had a curios problem with the new Cisco Aironet access points “AIR-AP2702I-UXK9”. This are universal (country-independent) APs. After several seconds, the access points from this series (connected directly to the PoE switches)¬†made a power reset.¬†Powering this APs with PoE-Injector solved the problem.¬†The Cisco switches used in the environment are 3550 series. The installed firmware … Read more

HP Accredited Technical Professional (ATP) FlexNetwork Solutions v3 exam passed!

Phew… finally done the exam for the HP ATP – FlexNetwork Solutions (HP0-Y52). My teammate also passed the exam. We did the three-day training two weeks ago at HPE B√∂blingen. Next year I will head for¬†HP Accredited Systems Engineer (ASE) FlexNetwork Architect v2¬†ūüôā

Sophos SSL VPN Problems with Kaspersky/TrendMicro Anti-Virus

In the last weeks, my network team and I tried to solve a problem at one of my customers regarding SSL VPN problems. The customer keeps connected (green traffic light on) but lost the network connection to his servers several times. Only a manual vpn-reconnect could solve the problem. UTM logs and client-logs couldn’t help … Read more

Sophos UTM Update 9.405-005 released!

Up2Date 9.405005 package description: Remarks: System will be rebooted Configuration will be upgraded Connected REDs will perform firmware upgrade Connected Wifi APs will perform firmware upgrade News: Maintenance Release Bugfixes: Fix [NUTM-2840]: [AWS] UTM ignores MTU sent by DHCP server Fix [NUTM-3064]: [AWS] Confd info shows wrong instance_role for ha warm&as Fix [NUTM-4426]: [AWS] Allow … Read more

Cisco Right to Use (RTU) Licensing

Cisco AP licensing on wireless lan controller was always a little bit “messy”. You need to add AP-adder licenses to your current license by activating a PAK (Product activation key) on with your Cisco CCO ID, downloaded the lic file and upload it to¬†your controller AND (!) restarting the whole machine. The last days, … Read more

Multiple SSIDs with Cisco Access Points

In this example I will show you how to configure multiple SSIDs on a dual-band autonomous Cisco access point. The interface “Dot11Radio0” is for 2.4 GHz and “Dot11Radio1” for 5 GHz. We will configure three SSIDs for¬†different VLANs. Create your VLANs for your wireless network: dot11 vlan-name Intern vlan 1 dot11 vlan-name Scanner vlan 10 … Read more

Enabling advanced CLI on HP v1910 Switches

I always thought, that the command line of the Comware OS based 1910/1920 switches are limited because they are “cheap”. But I found out to enable the full CLI to configure the devices like a 5000-series Switch. You can enable the full CLI with the following command: <HP 1920G Switch>_cmdline-mode on All commands can be … Read more

Secure Exchange Webservices with Sophos UTM WAF

current status of this guide:¬†18th July 2016 (Exchange 2016 compatible) There are many tutorials about securing Exchange webservices with the Webserver Protection from Sophos UTM but some are outdated or are not working any more. So I will show you a working configuration and will keep this tutorial up2date. Login to your Sophos UTM WebAdmin, … Read more

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