Head in the Clouds – Bridging Fun

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Today we’re going to play with bridging!!! Why are we talking about bridging in 2016 you ask? Well because I’m going to making a few posts as I work my way through the CCNP Cloud certification as well as catching myself up on the new CCIE DC blueprint so I’ll be talking a lot about VXLANs for a least a couple posts. Since bridging is making a come back in L2VPNs and such I figured why not start here? Also I just want to write about something that doesn’t need 50 screenshots 🙂

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Checkpoint – The Gentle SIC Reset

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I found myself in a awkward situation the other weekend where I lost access to Check Point’s internal networks after switching over some networks due to anti-spoofing and after a short adventure of spinning up a new management server in Azure, pointing the firewall to it and pushing a more permissive rule I was back online!!!!

However the problem now was that if I reset the SIC to point it back to the old mgmt station it would do a CPSTOP and CPSTART which would unload the happy policy and I would be back offline and no I could not go onsite!
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Phoning it in – Bashing UCOS

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When my UC lab blew up I contacted Cisco to get all the licenses reset which they promptly did, but to my absolute horror I found out I gave them the wrong mac address for my UCCX VM!!!!!!!!!!!! Since sending a email to the friendly TAC lady is far to much work and frankly a boring blog topic, let’s instead enable the bash shell in my UCCX and change the mac address to be what I sent them 🙂

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Phoning it in – Deploying CUCM

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I was planning on finishing the CUCME topics before diving into CUCM but as luck would have it one of my ESX servers blew up so I had to reinstall my CUCM lab and as they say “when life gives you lemons, make a blog post about it.” So today we’ll look at how to install UCOS based servers (CUCM, CUC, CER etc) since the installs are so similar I will just show the publisher and subscriber install for CUCM, then we’ll look adding the servers to Prime Licensing, and we’ll close out with how to do a upgrade!

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Virtualception – Running VMs off your Router!?!?!

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Today’s post will quickly go over a neat feature of IOS-XE that lets you run a virtual machine directly off your Cisco router, the feature is meant for the ASRs and the 4K routers but since CSRs use the same code base we can have a virtual router host a virtual machine!  This is different from using a UCS-E blade to run a full blown ESXi install, rather the router uses KVM to directly run the VM, it also supports containers which we’ll play with on some Nexus 9ks.

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Permanently Stuck (In Active)

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Hi all!

I was watching INE’s EIGRP videos and it put an idea in my head about how it might be possible to use FPM to prevent the EIGRP reply from making it back and therefore forcing things into a SIA state. Since I was bored today (terrible weather out) I did that very thing!

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