Tag: encryption

Firewalling

Cisco ASA NPE image

René Jorissen on January 4, 2011 • 1 Comment • Tags: #asa #cisco #encryption #no #npe #payload

I got complains from a customer who wasn’t able to configure 3DES or AES encryption for a VPN tunnel. Sounds familiar with a problem I had a couple of weeks ago. So I gave the customer the advice to upgrade and activate the VPN-3DES-AES feature. He tried but that didn’t solve this problem. I remotely … Read More

Management

Cisco ASA: web interface not working

René Jorissen on December 14, 2010 • 24 Comments • Tags: #113 #algorithms #common #encryption #error #net::err_ssl_version_or_cipher_mismatch #no #ssl

I had to troubleshoot a Cisco ASA today, where the client wasn’t able to connect to the management web interface anymore via https. The customer didn’t install ASDM locally, but always starts the Java-based version. After upgrading the Cisco ASA to software version 8.2(1) and a reboot, the client wasn’t able to connect to the … Read More

Quality of Service

PacketShaper Traffic Discovery and Citrix Session Reliability

René Jorissen on April 16, 2010 • 0 Comments • Tags: #citrix #data #discovery #encryption #packetshaper #reliability #session #stream #traffic

While troubleshooting some performance issues with Citrix sessions between headquarters and sub locations, I decided to take a closer look at the PacketShaper. The PacketShaper is positioned at the headquarter and does outbound shaping to the sub locations. The PacketShaper is using older software (7.2x), which isn’t necessarily a problem. I deleted the class for … Read More