Cisco WLC HA with 2504 series

I already posted a tutorial about Cisco WLC HA with 5500er series but I want to show you how to configure an N+1 high availability system with 2504 WLC from Cisco. Our main WLC will be a Cisco 2504 AIR-CT2504-5-K9 (supports five access points) and a HA unit Cisco 2504 AIR-CT2504-HA-K9. Here is the basic-configuration … Read more

Sophos UTM Update Version 9.407-3 out now!

Sophos published a new maintenance release for the UTM: System will be rebooted Configuration will be upgraded Connected REDs will perform firmware upgrade Connected Wifi APs will perform firmware upgrade Bugfixes: NUTM-4079 [AWS] DNS Resolver too slow for ELBs NUTM-3885 [Access & Identity] [RED] RED50 reconnecting every 30 minutes NUTM-4502 [Access & Identity] [RED] reactivating RED … Read more

Security update 9.406-3 for Sophos UTM ready to install!

Sophos fixed the TCP Vulnerability (CVE-2016-5696) within the linux kernel with this fix. Reboot is required! Bugfixes: NUTM-1616 [AWS] Change AMI type to HVM NUTM-4839 [AWS] AWS Instances in GovCloud need to use S3 buckets in GovCloud NUTM-5013 [Network] TCP Vulnerability (CVE-2016-5696) Download: ftp://ftp.astaro.de/UTM/v9/up2date/u2d-sys-9.405005-406003.tgz.gpg http://ftp.astaro.de/UTM/v9/up2date/u2d-sys-9.405005-406003.tgz.gpg

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 Böblingen. Next year I will head for HP Accredited Systems Engineer (ASE) FlexNetwork Architect v2 🙂

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 cisco.com 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