Cisco ASA

In my previous post in april I figured out how to upgrade the software step by step. In the mean time I found out it’s possible to do this in once. You need to setup first some tools before you can start. Have a TFTP and a FTP Server TFTP server needs to contain the…

Read More Cisco ASA – SourceFire 5506-X | direct upgrade to latest build

To see if you SSL version for AnyConnect is on a safe level. You want to check this first via the following website https://www.ssllabs.com/ssltest/analyze.html You need to enter your domain name which you use to connect with the clients to logon to. For this you need to use at lease ASA software version 9.3(2) or…

Read More Cisco | ASA disable SSL 3.0 settings and change it to TLS V1.2

It can happen that you need to configure an IP object range for office 365. I most cases this is because you have a policy that client users are not able to connect directly to the internet. Because of the company policy. In case of the last option where you probably have blocked all http…

Read More Cisco – Office 365| Office 365 IP object range on a Cisco ASA

Today I upgraded a Cisco ASA 5505 from 256MB memory to 512MB and 128MB Flash to 256MB Flash. After the upgrade the cisco asa forgot the configuration (not that bad, because I had a configuration backup), however after I uploaded the startup-configuration and than I saw the following output. Well I was thinking what is…

Read More Cisco ASA License gone after memory and flash upgrade how-to-recover

Today as I’m currently working wit a Cisco ASA 5510 to create a DMZ. I saw some create options which I didn’t use in the past earlier. In the Cisco ASDM 6.4 you normally add the external ip address to a service. Until I saw the option under Firewall > Public Servers. Public servers? Yes…

Read More Cisco ASA: easy connect server with service as static forwarder