Tag: cisco

Cisco stuff

ASA and Proxy ARP

Wow.  A new entry.  Everyone sit down before you pass out. I’ve got a real-world example for you today.  We have an ASA 5540 installed at a business unit with interfaces in multiple networks, including one containing the production servers…

RSPANs on Cisco Switches

We discussed SPANs earlier, but let’s talk about RSPANs for a bit. Can anyone guess what the “R” means?  You guessed it — “Remote”.  An RSPAN is a way to get traffic from a SPAN source on one switch to…

SPANs on Cisco Switches

I can’t believe I haven’t blogged on this yet.  SPANs are one of my favorite things in the world. The switched port analyzer (SPAN) is a mechanism on Cisco switches that allows you to take traffic on one port and…

CSM Probe Status of ???

I must be bored since I’m posting again. A colleague asked me to change the failed value of a TCP probe today.  It was no big deal, but, when I looked to see the status of the change, I noticed…