How to Configure Syslog on a Cisco IOS Switch or Router
In this tutorial, I’ll step through the process of configuring syslog on Cisco IOS based devices. For this example, I will be configuring syslog on…
IOS-XR
Configuring uRPF on Cisco Routers & Firewalls
uRPF is a security feature present in Cisco ISR routers running IOS-XR, ASA firewalls, and Secure Firewall Threat Defense (FTD) firewalls. It verifies the source…
Disable Weak SSH and SSL Ciphers on Cisco IOS
It amazes me how many network vendors still release software with weak ciphers enabled. Cisco is no exception to this. Any time you enable remote…
Configure SNMPv3 on a Cisco Catalyst Switch or Router
SNMP (simple network monitoring protocol) is an application-layer protocol that provides a message format for communication between managers and agents. The SNMP system consists of…
How to Enable SSH on a Cisco Catalyst Switch or Router
In this tutorial, we’ll cover the steps to enable SSH access on a Cisco switch or router running IOS, IOS-XE, or IOS-XR. Secure Shell (SSH)…
How to Stop Traceroute or Ping on a Cisco Device
Did you just start an extended ping or trace from the command line of a Cisco switch or router and are now staring at a…
How to Download Cisco IOS Updates for Free (Legally)
A few years ago Cisco walled off their update downloads, requiring that you have a current SMARTnet subscription (be under a support contract) to download…
How Update Cisco Router using USB Drive
If you have a Cisco IOS Router or Switch that you need to update via USB, you’re in the right place. Copying your firmware image…
Cisco Configuration Archive & Rollback: The Undo Button
Ever wished you could undo a change to a Cisco IOS device right after committing it and subsequently losing access to it?
I’m pretty sure we’ve all been there.