Cisco

Getting Started with the Cisco CSM

·4 min read

Cisco’s Content Switching Module (CSM) is an application accelerator. Or is it an application networking service module? I hate those fancy buzzwords – it’s a load balancer. …

ciscocsm

Finding Hosts on Layer 2

·1 min read

Most firewalls should block [tag]ICMP[/tag] requests to them, so how do you know that your router or server has layer-2 connectivity to one? It’s pretty elementary, actually, but I’ve …

ciscolinux

HSRP Interface Tracking

·2 min read

Remember the article on router-on-a-stick? And the one on HSRP? Let’s add to that example network, shall we? Let’s make those routers into edge routers so they connect your internal …

ciscohsrp

SNMP v3 is Easy!

·3 min read

I finally got around to looking into [tag]SNMP[/tag] v3 and was shocked at how easy it actually is. When I first looked up info on it so many moons ago, I saw table after tables of views and privilege …

ciscosecuritysnmp

Setting Up SSH on IOS Devices

·5 min read

By default, most Cisco [tag]IOS[/tag] devices come configured to be accessed via telnet. This is probably fine for your house, but I really cringe when I run across corporate networks that use …

ciscosecurity

Running HSRP for Availability

·3 min read

In the article describing a router-on-a-stick, I mentioned that I would use two routers that run HSRP for availability, so I figured that I would write up a short post on what it is and how it works. …

ciscohsrp

Router-on-a-Stick

·3 min read

Ever heard of a router-on-a-stick? Go ahead and laugh…everyone does. It’s a funny name for a very serious topic, though. A router-on-a-stick is a network configuration that uses a single …

cisco

Common Cisco IOS Commands

·2 min read

Here’s a list of IOS commands that I use all the time that aren’t a part of the basics. I obviously use more than just these, and you do, too, but I hope there’s at least one …

ciscocli