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Karsten Iwen
VIP
VIP
Member since ‎12-21-2006
‎06-03-2025
Awards
13
Cisco Designated VIPs 2018 Firewalling VPN 2017 Firewalling VPN 2016 Firewalling VPN 2015 Security 2014 Security 2013 Security 2019 Firewalls, VPN 2020 Network Security Endpoint Security 2021 VPN, Network Security 2022 Network Security 2023 Network Security, Networking 2024 Network Security, Networking 2025 Network Security, Networking
1
Spotlight Awards Mobile App Contributor August 2012
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User Statistics

  • 7065 Posts
  • 1378 Solutions
  • 779 Helpful votes Given
  • 6725 Helpful votes Received
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First Discussion
100 Accepted Solution
70 Discussion Posts
40 Accepted Solution
60 Replies
350 Helpful Vote
350 Replies
40 Discussion Posts
350 Discussion Posts
400 Discussion Posts
Certifications
Designing Cisco Enterprise Wireless Networks
Cisco Certified CyberOps Associate
Cisco Certified CyberOps Associate
Cisco Certified CyberOps Associate
Cisco Certified CyberOps Associate
Cisco Certified CyberOps Associate
Cisco Certified CyberOps Associate
Implementing and Operating Cisco Enterprise Network Core Technologies
Cisco Designated VIP
Implementing and Operating Cisco Service Provider Network Core Technologies
Implementing Cisco Enterprise Wireless Networks
Security Architecture for System Engineers
Implementing and Operating Cisco Security Core Technologies
Implementing Secure Solutions with Virtual Private Networks
Cisco Meraki Solutions Specialist
Cisco Meraki Solutions Specialist
Cisco Meraki Solutions Specialist
Cisco Meraki Solutions Specialist
Cisco Meraki Solutions Specialist
Implementing and Configuring Cisco Identity Services Engine
Securing Networks with Cisco Firepower Next Generation Intrusion Prevention Systems
Cisco Certified Network Professional Wireless (CCNP Wireless)
Cisco Certified Specialist - Enterprise Wireless Design
Cisco Certified Specialist - Enterprise Wireless Design
Cisco Certified Specialist - Enterprise Wireless Implementation
Cisco Certified Specialist - Enterprise Wireless Implementation
Cisco Certified Specialist - Security Identity Management Implementation
Cisco Certified Specialist - Network Security VPN Implementation
Cisco Certified Specialist - Network Security Firepower
Cisco Certified Network Professional Security (CCNP Security)
Cisco Certified Network Professional Security (CCNP Security)
Cisco Certified Network Professional Security (CCNP Security)
Cisco Certified Network Professional Security (CCNP Security)
Cisco Certified Specialist - Security Identity Management Implementation
Cisco Certified Specialist - Web Content Security
Cisco Certified Specialist - Network Security VPN Implementation
Cisco Certified Specialist - Network Security Firepower
Cisco Certified Specialist - Security Core
Cisco Certified Network Professional Security (CCNP Security)
Cisco Certified Network Associate Security (CCNA Security)
Cisco Certified Network Associate Wireless (CCNA Wireless)
Cisco Certified Internetwork Expert Enterprise Infrastructure (CCIE Enterprise Infrastructure)
Cisco Certified Internetwork Expert Enterprise Infrastructure (CCIE Enterprise Infrastructure)
Cisco Certified Internetwork Expert Enterprise Infrastructure (CCIE Enterprise Infrastructure)
Cisco Certified Specialist - Enterprise Design
Cisco Certified Specialist - Enterprise Design
Cisco Certified Design Professional (CCDP)
Cisco Certified Internetwork Expert Security (CCIE Security)
Cisco Certified Internetwork Expert Security (CCIE Security)
Cisco Certified Internetwork Expert Security (CCIE Security)
Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation
Cisco Certified Specialist - Enterprise Core
Cisco Certified Network Professional Enterprise (CCNP Enterprise)
Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation
Cisco Certified Specialist - Enterprise Core
Cisco Certified Network Professional Enterprise (CCNP Enterprise)
Cisco Certified Network Professional Routing and Switching (CCNP Routing and Switching)

User Activity

FTD/FDM upgrade: Invalid password: A blank or masked password is ...

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...

Switch not manufactured by Cisco

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...

Guide to better SSH-Security

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 ...

ADSL-Config for AAPT

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...

3750-X Buffer-Management

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...
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Community Statistics
Member Since ‎12-21-2006 02:52 PM
Date Last Visited ‎06-03-2025 01:01 AM
Posts 7,065
Total Helpful Votes Received 6659
Helpful Votes From
Awards
Cisco Designated VIPs
2018 Firewalling VPN
Cisco Designated VIPs
2017 Firewalling VPN
Cisco Designated VIPs
2016 Firewalling VPN
Cisco Designated VIPs
2015 Security
Cisco Designated VIPs
2014 Security
Cisco Designated VIPs
2013 Security
Cisco Designated VIPs
2019 Firewalls, VPN
Cisco Designated VIPs
2020 Network Security Endpoint Security
Cisco Designated VIPs
2021 VPN, Network Security
Cisco Designated VIPs
2022 Network Security
Cisco Designated VIPs
2023 Network Security, Networking
Cisco Designated VIPs
2024 Network Security, Networking
Cisco Designated VIPs
2025 Network Security, Networking
Community Spotlight Award
Mobile App Contributor August 2012
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