Delete a route in Mac OS X Yosemite

I realized I had a post for how to add a static route, but didn’t have one for how to delete one…. So here ya go!  

How to Add a Route in Mac OS X Mavericks

Ever have need to access a network that your default gateway (router) doesn’t know about?  Just add the route via the CLI/Terminal on a Mac OS X running Mavericks! The command is sudo route -n add (network) (gateway)

SSH to a New Cisco IOS-XR Device

If you have a Cisco device you’re wanting to get SSH access to, you can’t just SSH into the box right from the get go. There are a couple things to do first:  Add an IP Address to an Interface (from config mode)

Enable SSH (from config mode)

Create a DSA key (from … Continue Reading

Passion for…. Anything? Everything? Something!?

Passion, desire, enthusiasm, excitement, zeal, and fervor…… These words describe more than just a passing interest or modest caring for something. They describe a level of devotion and dedication that surpasses the “normal”. They so poignantly portray an artist lost in her instrument, an athlete at his peak output during an event, an evangelical preacher … Continue Reading

Juniper Route Selection Process (BGP)

I’ve had to look this up more than a few times, so I figured I’d throw it here for anyone else looking. Yes, I know it’s all over the Internet, but one more place doesn’t hurt does it? And remember, the LOCAL PREFERENCE value is the only value where HIGHER is better. Route Preference (BEFORE BGP Path … Continue Reading

Route Distinguishers (auto vs. manual)

Automatic Route-Distinguishers vs. Manual Route-Distinguishers Every MPLS VRF needs a unique route distinguisher.  This is needed for BGP to tell the difference between two of the same prefixes on two different VPNs.  You wouldn’t want the route-selection process to perform a route-selection between the two because they’re in separate routing domains. Both JUNOS and IOS-XR … Continue Reading

JUNOS BGP Damping Policies

Attached is a good starting point for damping policies.  You could create different damping policies per BGP group/neighbor, but a standard set allows an enforced “network-wide” BGP damping policy. Download BGP_Damping_config_template_stanza.txt To apply the policy, you just add the damping knob and add the policy to the import policy list before any ACCEPT actions are done. I … Continue Reading

Load Balance on a #Juniper SRX in #JUNOS

Many small-businesses and branch offices have 2 ISP connections and 1 Juniper SRX.  The branch office Juniper SRX is awesome for anti-virus, anti-spam, intrusion detection, VPNs, and just plain firewalling, but one of the downsides is the fact that per-packet or per-flow load-balancing isn’t possible on a stateful Juniper SRX. You won’t be able to “truly” … Continue Reading

What’s wrong with the Internet?

If you’re a network engineer then you probably know where this is going and have heard this before.  If not, read on and learn about the insides of the Internet! A lot of people describe the Internet as “a bunch of connected computers”.  Let’s go with that definition. The word “connected” in that definition is … Continue Reading