As always, I've changed pertinent details for reasons. I was working on an ASR the other day and received the follow error: RP/0/RSP0/CPU0:ASR9K(config-tacacs-host)# commit Fri Jul 29 12:55:46.243 PDT % Failed to commit one or more configuration items during a pseudo-atomic operation. All change...

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Categories: Networking

For those that are really into privacy, the Privacy Extensions defined in RFC 4941 are a really good thing. This extension circumvents SLAAC and has the result of randomizing your IPv6 address. Like I said, if privacy is a big deal for you, this is definitely something you want enabled. Fortunate...

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Categories: Networking

Here are a few tips that might be helpful if you are having trouble accessing your Cisco router or switch via the web server. Make sure you have the right password! This is pretty obvious, but it's definitely the first thing worth checking. If you're using aaa new-model, you will need to tell the web […]

Categories: Networking

If you need to disable spanning-tree on a particular VLAN in your Cisco-based network, use the following command...

Categories: Networking

Not everyone has a great password maintenance process. If you run into a situation where the group pre-shared keys for your VPN are lost, you face the option of changing the existing key (and breaking any users that are currently working), or creating a new group with a new key.

Categories: Networking