Packet Capture on a Remote Cisco Device Typically when I need to do a packet capture on a remote Cisco IOS/IOS-XE device, I use RSPAN to mirror that traffic someplace where a VM can receive the capture. This week I learned a trick that allows much more flexibility!...
This post is part three to Why We Love Continuing Education and Certifications and How I Study for IT Certification Exams There’s a genre of movie that’s usually predictable, sometimes corny, but always endearing. These are the movies where a group of...
This post is part 1 in a three part series which includes How I Study for IT Certification Exams and What Certs Should My IT Team Have? My First IT Certification When I graduated from UNC Asheville in the spring of 2003 with a Computer Science degree, I had assumed...
We changed a customer from PRI to SIP trunk and after the change, the Exchange UM stopped working for calls coming in from the outside. We found the following error in the logs: %VOICE_IEC-3-GW: CCAPI: Internal Error (Software Error): IEC=1.1.180.1.13.112 on callID...
On the pre 4000 series ISRs you would use the regular Cisco escape sequence to exit a service module — CTRL-SHIFT-6 followed by X. In the 44xx and 43xx series routers the switch modules do not respond to the regular escape sequence from the console. Instead,...
The Cisco ASA firewall can run as virtual host for multiple virtual ASA’s known as contexts. We recently ran into an issue where a memory leak made one context inoperable. Rather than reload the entire ASA and take out the other contexts we wanted to only...
