VXLAN, EVPN, NXOS and Route Targets.

Hello there,

I have used VXLANs with EVPN using Cisco ACI and the APIC controller. While the APIC controller is great, it masks a lot of the configurations done on the spines and leaf devices.

I currently do not use VXLANS at all so I decided to circle back and reacquaint with it. However, since I decided to do this in my home office lab environment I said to myself let’s use CLI commands.

Got the lab working and it was great to a point, run into an issue that drove me crazy for quite a bit.

Continue reading “VXLAN, EVPN, NXOS and Route Targets.”

Chrome so Freaking Slow on Windows 10

Hello there,

Recently I encountered an issue, which is rampant, and people complaint a lot about it.

All of a sudden, Chrome would not load. I was getting “Page unresponsive”.

This is happened to me once before, on my work computer Chrome become sluggish as molasses. Try a few of the things you find on the Internet, did not work.

Then as sudden as it started it went away. No explanation.

A few days ago, on my home computer Chrome started to behave that way. Nothing worked.

I started using Firefox again which was fine, this was a clue that the culprit was Chrome.

I know what you are going to say, there was a virus, blah, blah, blah.

Nope, there was no virus. Will not go onto how I was certain, I have AV plus other things and after checking there was no virus.

Finally, I decided to uninstall and reinstall Chrome. No luck.

What was one to do? Then it dawned on me. Why don’t I try the 32-bit version? Yes, you can still get it and it is not as much of a memory hog as the 64-bit version.

So, I did uninstall the 64-bit version and install the 32-bit version.

What do you know it resolved the issue, for a while it seemed that the issue was still there however after a couple of minutes Chrome started to behave normally.

Once again, I have no explanation.


Take care.


ESXi, VMware, KVM, Proxmox, Oh My!

Hello again,

I have used virtualization for a while now in the enterprise.

Mostly using Esxi and vSphere, using servers with 256 GB of memory and Terabytes of backend space (iSCSI, Fiber, NFS, etc.).  Also, some KVM setups when Open Source was the only viable option due to pricing, etc.

At home, I have used either the free version of VM-workstation or VirtualBox.

I have not needed something more powerful. Just enough to test a new Linux distro for example, or run a KVM image.

However, I started to use GNS3 to run big labs at work. Then I switched to EVE-NG. This was not an issue of course since I had the virtual resources.

At home, it was a different story could not run big labs just the simplest ones.

Thus, I started to look to get some computer power. I could have got a server of e-bay for some decent price. However, they are noisy as hell.

Continue reading “ESXi, VMware, KVM, Proxmox, Oh My!”

Kodi, Leia, IPTV Oh My!

Hello there,

Well, I use Kodi as my media center on Ubuntu 20.04.

I do not use it that much nowadays since ESPN has moved most of its content to ESPN+ ( and yes I have a valid subscription via my cable provider) and there is no add-on for it.

As well as with NBC which now uses Peacock and some other apps.

I still use it to watch my movie collection and also IPTV. I have a subscription with a provider.

The other day, I decided to clean it since I had lots of repositories that did not work anymore and it was a mess So I did a clean install to Kodi Leia.

So far so good until I started Kodi. Notice that the PVR IPTV Simple Client was not working.

No sweat, under Ubuntu you can add it as a package, and perhaps it was not installed correctly.

Silly me,  the problem was that it had a dependency that was broken. It was asking for the Kodi-API-PVR=(3.5.10).

Strange since the Kodi install package should have the API on it. Not really somehow the API is no longer part of it.

Well, I tried installing it from the Kodi repository, it is no longer there it has been taken out. The new repository that has it, was trying to install a client that had the same error as when I tried it on Ubuntu. Bummer.

A long search on forums gave no answer, under Windows it seems to be working under Linux it seems to be broken but for some distros and not others.

Found someone on a forum saying it was a banned add-on, silly rabbit. First of all, it is just a client it has no configuration to try to stream stuff you are not suppose to for example.

That brings me to another thing that bothers me, there are lots of people on forums that do not know diddly.

They ask inane questions, send you the wrong path, and sound as they are doing you a favor. Who would it thought the Internet was like that (sarcasm…).

In any case, decided to go to the source.

Went to the following link for the PVR IPTV Simple Client and followed the instructions on how to compile it.

After that, I added the add-on to Kodi and now it works!

The moral of the story, sometimes you need to take the bull by the horns and do things yourself.

Take care.


Using SNMP to retrieve, update and write to a Cisco router

Hello there,

We all have used SNMP to retrieve information from Cisco routers.

However, I have never tried to do so directly by accessing the MIBS.

Applications that do so like Solar Winds use them to get such information.

I started to write an application using shell scripting so I could perform some operations like retrieving the running configuration however, I found a script that someone had written. It only did a few things so I did expand it to do a little more.

Continue reading “Using SNMP to retrieve, update and write to a Cisco router”

BGP Flowspec Using ExaBGP

Hello Internet,

I was reading about flowspec the other day. It has been around for a while now however it was on the news just recently due to the Internet outage caused by L3.

Apparently, a rule send by a flowspec controller was misconfigured and took down several BGP peers which in return took other BGP peers to L3 and you already know what happened.

Thus I decided to show a lab that implements flow spec for both IPV4 and IPV6.

Here we go.

Continue reading “BGP Flowspec Using ExaBGP”

NAT64 Lab Using Cisco’s ASR and DNS64 (Maybe).

Hello again,

The other day I came across a configuration by Cisco in regard to NAT64.

As you are aware, NAT64 permits IPv6 only networks to access IPv4 networks and vice versa.

Of course, they are not entirely IPv6 only networks since they probably have an IPv4 gateway somewhere allowing them to access IPv4 networks on the Internet.

I decided to do the lab and test it using EVE-NG. Continue reading “NAT64 Lab Using Cisco’s ASR and DNS64 (Maybe).”

Hostapd Revisited. Using Bridging for IPv4 and IPv6.


In a previous post, I have shown a configuration using Hostapd, Ubuntu and a Belkin USB dongle allowing me to have Wi-Fi access.

This work reasonably well but the speed of the dongle was 54 Mbps only.  So I decided to buy a Panda PAU06 Wireless N USB adapter.

The reason was that Panda claimed it was Linux compatible and it will operate at 150 Mbps. I know 150 Mbps is so slow nowadays, but I do not need that much speed on the WLAN, all my devices are wired with Gigabit speed.

I do not have several people competing for bandwidth also.

If I need to stream something I use, the media center connected to a big-screen TV.

This setup actually worked fairly well, using Fedora 29 on VMWARE Workstation.

The setup used routing and that created some issues with the “/64” prefixes I am given by my provider that you can read in that post.

Well, I accidentally deleted the VM guest the other day, yes I had no backup but I am always careful, this time it bit me in the behind.

Thus this time I decided to re-do the setup but instead use bridging to connect the LAN and WLAN interfaces. This is working rather well, so read on. Continue reading “Hostapd Revisited. Using Bridging for IPv4 and IPv6.”