I spent the last of my Juniper exam vouchers on the JNCIS-SEC exam and passed by the skin of my teeth today.
There are a few ways to leak routes in and out of virtual routers in Junos. On the list is a cool feature called the logical tunnel interface.
I quit my job…by design. I start a new gig on Tuesday and am getting back to the world of Cisco. As a last nod to Juniper, I decided to use an exam voucher I had and take the JNCIS-ENT exam. Easy pass. The content…
Here’s one that I use every day at work. We have multiple customers coming into the same router, and, as luck would have it, they all use 192.168.1.0/24 (OK…not really but it might happen). That means we have to separate them into their own routing instance, or virtual router, so pass traffic to their firewall. Think VRF lite on a Cisco router. Let’s conflagrate.
I’m stuck deep in Junos these days. I mean deep. That means I have some learning to do.
One cool thing I’ve found is the configuration group, which is a way to create a configuration template.
Maybe not epic, but a win nonetheless.
This isn’t hard stuff at all. I’m sure there are a couple of cool tricks I don’t know yet, but let’s try anyway.
We all know that the configuration on a Junos box is very hierarchical. Sometimes it doesn’t make a lot of sense, but it’s all a pretty cascade of code. One of the big messes that I’ve found is the VPN configuration hierarchy; there are way more items to configure than on an IOS device. To reinforce the stpes in my head, I thought I’d get some of the pieces into a post.