About Karsten Iwen

Karsten Iwen · 03-03-2022

Hi, this is a new error I've never seen before when upgrading an FDM managed FTD. It is an FP1120 running 6.6.5 that I wanted to upgrade to 7.0.1. The Upgrade runs to 38% and fails with the following log: Fatal error: Invalid password: A blank or m...

Karsten Iwen · 07-22-2015

After upgrading a 2960-X to IOS 15.2 i get the following message: Jul 22 14:20:51.933: %ILET-1-AUTHENTICATION_FAIL: This Switch may not have been manufactured by Cisco or with Cisco's authorization. This product may contain software that was copie...

Karsten Iwen · 10-28-2014

There are countless recommendations for the configuration of SSH on Cisco devices available. But many of them propose settings that are not adequate any more. This document shows how to set up SSH on IOS and ASA for advanced session-security and how ...

Karsten Iwen · 01-29-2014

Hi all,can anyone provide me with an ATM-config for the australian provider AAPT?I have an 887VA (IOS 15.2) on the following connection (ADSL2+):Service Type: IP-Line LinkService Speed (Mbps): Up to 20Mbps/1Mbps...Encapsulation: PPPoA/VCMUX or PP...

Karsten Iwen · 12-18-2013

Hi all,some days ago someone posted a link to a very good document on 3750-X Buffer-management from the Documnets-Area here on CSC. Sadly I didn't bookmark that and now I don't find it any more.So, please post it again! ;-)And if anyone has more info...

Karsten Iwen · 05-31-2023

@Joseph W. Doherty It is partly was I meant, but as a mid/long-term goal. But when coming from a CCNA level and working in the area of general networking I would not directly switch to Security although it might be the area of interest. Deepen the kn...

Karsten Iwen · 05-31-2023

As the best I would consider an official training with a learning partner because you can ask questions. More cost-efficient is the Official Learning Guide from Cisco Press: https://www.ciscopress.com/store/ccnp-enterprise-core-encor-350-401-and-adva...

Karsten Iwen · 05-31-2023

If general networking is your main area of work, going towards the CCNP Enterprise would be a logical and useful step. But if you are interested in Cisco Security, studying for the SCOR exam will give you lots of additional insight. But I would recom...

Karsten Iwen · 05-30-2023

This device is End of sale for over ten years and End of support for over six years. After this long time Cisco typically has removed all files from the download area.

Karsten Iwen · 05-28-2023

Good catch!

Member Since	‎12-21-2006 02:52 PM
Date Last Visited	‎06-01-2023 02:20 AM
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FTD/FDM upgrade: Invalid password: A blank or masked password is ...

Switch not manufactured by Cisco

Guide to better SSH-Security

ADSL-Config for AAPT

3750-X Buffer-Management

Re: Is CCNP security a valuble skill to have when i work mostly netwo

Re: Is CCNP security a valuble skill to have when i work mostly netwo

Re: Is CCNP security a valuble skill to have when i work mostly netwo

Re: SRW208 firmware

Re: LB (ECMP) of Internet traffic between two ASR routers and two ISP'