Compilation of Study Notes

Having spent a bit of time on VMware’s NSX platform I decided I would take the next step up the certification path. I sat the VMware advanced exam – VMware Certified Implementation Expert Network Virtualisation – VCIX-NV. I was quite…

I was a bit slow on this one. I have been very busy of late. VIRL have updated with a feature release. 0.9.17 is an in place upgrade. There is a lot of focus on stability. There is also a…

I have come across some interesting behaviour at the interface level with EIGRP. Dynamic By default many people use the network command to form a neighbor with EIGRP. This involves sending Hellos to 224.0.0.10 or FE02::A at the default interval…

When building a topology within Cisco VIRL it is a good idea to familiarise yourself with the file structure. If you’ve been exposed to XML and Cisco config files before (I would hope ALL of you would have) then nothing…

I have been configuring a rather large topology within my GNS3 environment of late and it is composed of many peers. At this stage I had a plethora of peelings up. The diagram below highlights a small subset of a…

Working through OSPF and MPLS recently I came across an interesting concept. I built out a simple MPLS cloud and had one customer joining two sites across it. The goal was to connect it over MPLS and leverage OSPF for…

Here is the Juniper flavour of the FQDN access-list. The policy used references the dns-name and creates policy destination addresses accordingly. It is important, as noted in the optimisation and initial ASA FQDN configuration post, that you have a set…

I have covered a deal of topics across JUNOS but now it is time to look at switch traffic capturing. It is possible in IOS with some simple monitor commands and it is rather straight forward on JUNOS. Now, I…

So what is DHCPv6 client mode and why can this help me? A while back Ivan Pepelnjak commented on the blog asking if the SRX had DHCPv6 client features such as IA_PD and IA_NA. Now as of version 12.1×45-D10 these…

The last couple of weeks I’ve spent some time dealing with a little adversary. The Cisco CCNP has been a want for a while and I started the quested and my pace did slow off. Well finally I made it…

I have managed to get the QEMU version of ASA running inside Ubuntu 12.04. Previously I have installed this on Windows and OSX. The trifecta will be complete with this post with the ASA running inside Ubuntu. Similar to the…

As per the previous blogs if you have followed from the start you will notice you have downloaded, installed, and configured your Juniper SRX to support IDP technologies. This is a great start. For most users the default templates defined…