ASDM on Windows 10: ‘Cannot find Javaw.exe?’
Oct17

ASDM on Windows 10: ‘Cannot find Javaw.exe?’

KB ID 0001478 Problem Windows 10 machine, (with Latest Java installed), while attempting to launch the ASDM you see; Windows cannot find ‘javaw.exe’. Make sure you typed the name correctly, and then try again. Solution I should have fixed this a lot quicker than I did, because the error message was a lot more descriptive in older versions of Windows and the ASDM! This is the same problem seen on Windows 8. You still need...

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Cisco ASA No Debug Output?
Oct16

Cisco ASA No Debug Output?

KB ID 0001477 Problem I see this get asked in forums A LOT, typically the poster has another problem they are trying to fix, someone has asked them to debug the problem and they cant see any debug output. Solution Firstly you need to understand what logging is, and how debugging fits within it. (Bear with me, this is good knowledge to have). The firewall saves logs in syslog format, and there are 8 Levels of logs, the one with the...

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Cisco AnyConnect With Server 2016 NPAS (RADIUS) Different Groups
Oct11

Cisco AnyConnect With Server 2016 NPAS (RADIUS) Different Groups

KB ID 0001474 Problem A few years ago I replaced a firewall that was setup like this, and while it took me a while to work out what was going on, I remember thinking it was an elegant solution. Fast forward to today, and I’m now working with the guy who set it up! (Kudos to Paul White). So when I had a client with a similar requirement, I sat down fired up the lab, and documented it. What was used; Windows 10 Remote Client...

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Unable to Access ASDM – “Unable to launch device manager from…”
Oct11

Unable to Access ASDM – “Unable to launch device manager from…”

KB ID 0000915 Problem A colleague of mine was trying to connect to a firewall via ASDM last week, and was greeted by an error like this. Now this is a pretty standard error, and usually means you haven’t been allowed access, or there isn’t a firewall at that address, but in this case I knew that a) he did have access, b) that was the correct IP address, and c) it worked fine on my machine, so it was setup correctly. As I...

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Cisco Firewall Port Forwarding
Sep20

Cisco Firewall Port Forwarding

KB ID 0000077 Problem Note: If your firewall is running a version older than 8.3 you will need to scroll down the page. Port forwarding on Cisco firewalls can be a little difficult to get your head around, to better understand what is going on remember in the “World of Cisco” you need to remember two things….. 1. NAT Means translate MANY addresses to FEW Addresses 2. PAT Means translate MANY addresses to ONE Address....

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Cisco ASA5500 – L2TP over IPSEC VPN
Sep10

Cisco ASA5500 – L2TP over IPSEC VPN

KB ID 0000571 Problem When Cisco released version 7 of the operating system for PIX/ASA they dropped support for the firewall acting as a PPTP VPN device. Note: If you want to use PPTP you can still terminate PPTP VPNs on a Windows server, if you enable PPTP and GRE Passthrough on the ASA. But if you want to use the native Windows VPN client you can still use L2TP over IPSEC. I had a look around the net to work out how to do this and...

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