Blog – Murat's Blog

Restoring the blog

By Murat Posted on December 14, 2023 Posted in Blog

Due to a very silly reason, my blog got deleted. I am trying to restore it gradually. Some posts I was able to salvage from old db backup, and some from the Web Archive. Others – from my drafts. I am not sure I will be restoring it completely, as not everything is relevant anymore.

Preparing VMware Workstation for CUCM installation

By Murat Posted on February 3, 2017 Posted in Blog

In this post we will prepareVMware Workstation for the installation of CUCM 11.5. You can download the trial version of Workstation here. You should remember, that this installation is for lab use only and is not intended for production.

After Workstation was installed, let’s run the program and start by adding a new network. Choose: Edit > Virtual Network Editor…

Connecting GNS3 to loopback interface

By Murat Posted on February 2, 2017 Posted in Blog

To connect GNS3 to an existing loopback interface, add a router and a cloud device.

Virtual Chassis configuration on Juniper EX4600

By Murat Posted on October 15, 2016 Posted in Blog, Cisco

So yesterday I’ve been configuring a two-member Virtual Chassis on Juniper EX4600. I’ve been following the guide but the configuration wouldn’t save when issuing commit or commit synchronize commands with the following error:

Member’s information missing from provisioning database

Turns out, when adding members to VC

user@switch# set member 0 serial-number abc123 role routing-engine user@switch# set member 1 serial-number def456 role routing-engine

serial numbers must be entered with UPPER CASE letters. I wish this was mentioned in the guide or at least the guide didn’t use lowercase letters in the examples. It could’ve saved me a lot of time 🙁

Upgrading IOS XE on ASR 1002

By Murat Posted on August 11, 2016 Posted in Blog, Cisco

So I needed to upgrade the IOS XE on the customer’s ASR 1002 and after copying the image from USB to Flash, I issued a standard command

boot system flash asr1000rp1-advipservicesk9.03.16.03.S.155-3.S3-ext.bin

After reloading the router I get this error:

boot: unsupported boot device "asr1000rp1-advipservicesk9.03.16.03.S.155-3.S3-ext.bin" autoboot: boot failed, restarting…

First Google search result showed that I missed ‘bootflash:‘ before the name of the IOS image and the correct command should be

boot system flash bootflash:asr1000rp1-advipservicesk9.03.16.03.S.155-3.S3-ext.bin

Definitely need to remember this!

Adding Loopback interface in Windows 10

By Murat Posted on July 26, 2016 Posted in Blog, Windows

To add a loopback interface in Windows 10, press Win+R and enter ‘hdwwiz’

Press ‘OK’ and confirm the pop-up on User Account Control. We see the following ‘Add Hardware Wizard’

BE6000S Finally

By Murat Posted on July 24, 2016 Posted in Blog, Cisco

Finally got my hands on BE6000S. An interesting little machine and worked great for the small project. One thing to keep in mind though, if you decide to change the default IP addresses, it’s better to rebuild the BVI.