Recent Posts - page 10
-
Resumes: “Begin with the End in Mind” – Musings from the FishBowl
I feel like I should go to some “Resume PTSD” meetings.. are there such things? LOL. I can imagine a dark room like they have in the movies for 12 step meetings. Some podium up in the front where everyone… Read More ›
-
Understanding IPv6: Solicited-Node Multicast In Action (Part 7 of 7)
The last few blogs in my series on IPv6 have focused on solicited-node multicast, which provides the functionality for Neighbor Discovery in IPv6 addressing. We ended the last blog with a cliffhanger, asking, “In IPv6, how do we find the Layer 2 MAC address… Read More ›
-
Understanding IPv6: The Ping Before Solicited-Node Multicast (Part 6 of 7)
In a previous blog, we looked at the basics of IPv6 solicited-node multicast. Going back to our Router A and Router B environment, if we sniff the wire while pinging from Router A’s IPv6 address to Router B’s IPv6 address, what will… Read More ›
-
Understanding IPv6: Prepping For Solicited-Node Multicast (Part 5 of 7)
Solicited-node multicast: I stumbled and tripped a bunch over this one in the beginning. Well, that isn’t 100% true. Admittedly, at first, I really just ignored it, which really got in the way of my understanding some of the fundamentals… Read More ›
-
Understanding IPv6: What Is Solicited-Node Multicast? (Part 4 of 7)
IPv6 solicited-node multicast sometimes seems to confuse those new to IPv6 in the beginning. I think this is because it seems so foreign and new. In this post, we will explore exactly what IPv6’s solicited-node multicast is and the rules… Read More ›
-
Understanding IPv6: A Sniffer Full Of 3s (Part 3 of 7)
“What the heck?” Yup, that pretty much summed up my confusion the first time I saw it. A sniffer trace full of threes. The first thing it reminded me of was my days with Token Ring and locally administered addresses… Read More ›
-
Understanding IPv6: Link-Local ‘Magic’ (Part 2 of 7)
For those of you new to IPv6, what I am about to show you is going to look a lot like a magic trick. I’m going to bring up an IPv6 IGP neighbor relationship (OSPFv3) between two routers. This doesn’t… Read More ›
Featured Categories
Network Detective ›
-
Tips from a Network Detective
April 12, 2021
-
Troubleshooting Basic MPLS L3VPN – Part 2 – MPLS
February 23, 2021
BGP ›
-
BGP Graceful Restart on the Cisco FTD: Part 2 – Seeing it “In Action”
May 17, 2022
-
BGP Graceful Restart on the Cisco FTD: Part 1 – Configuring
May 17, 2022
Multicast ›
-
mVPN Fun in the Lab: Troubleshooting the MVPN Cloud – Part 6 of 6
March 29, 2019
-
Network Detective Ride-Along: Troubleshooting Multicast
May 27, 2018
IPv6 ›
-
Understanding IPv6: Solicited-Node Multicast In Action (Part 7 of 7)
February 22, 2018
-
Understanding IPv6: The Ping Before Solicited-Node Multicast (Part 6 of 7)
February 22, 2018
MPLS ›
-
Troubleshooting Basic MPLS L3VPN – Part 1 – BGP
February 23, 2021
-
The “Case of the Broken MPLS L3VPN” – Time to Troubleshoot!
April 11, 2019