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Here's how you can inject thousands of routes into BGP with testing GNS3. I recently discovered this blog post where someone created a Ubuntu VM that can do this. Here's a quick tutorial on how you can get this to work in your network. First of all, credit to the original creator! http://www.stubarea51.net/2016/01/21/put-500000-bgp-routes-in-your-lab-network-download-this-vm-and-become-your-own-upstream-bgp-isp-for-testing/ Now for …

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Here are some clear instructions on replacing a failed 3850 stack member (switch 4 in this case) and upgrading the 3850 stack as well. First, go get the latest recommended image as of 5/1/2018 download link: https://upw.io/2Ve/cat3k_caa-universalk9.16.03.06.SPA.bin 1. Take full backup of switch stack 2. Upgrade stack and new switch (separately) to latest image as …

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Here's a quick tutorial on how to get the latest anyconnect client installed on Fedora 27 or CentOS 7! Straight to it!   1. Download anyconnect https://upw.io/2Vd/anyconnect-linux64-4.5.05030-predeploy-k9.tar.gz 2. Install pre-req sudo yum install pangox-compat 3. Extract any connect tar -xvf anyconnect-linux64-4.5.05030-predeploy-k9.tar.gz -C anyconnect 4. Install it cd anyconnect cd anyconnect-linux64-4.5.05030 cd vpn sudo ./vpn_install  

One thing people seem to get hung up on when remembering the golden rule of "longest matching route wins" is when looking at directly connected routes. Consider the following network from the perspective of R1: Assume that from R1 we ping 192.168.2.2, does the ping follow the static route or the directly connected route? Remember …

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