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 ›
Routing
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 ›
Understanding IPv6: The Journey Begins (Part 1 of 7)
IPv6 and I met back in the early 2000s. After the initial getting used to the 128 bits and the odd /64 mask I thought I “knew” IPv6. I really didn’t see why people found it so difficult. Looking back… Read More ›
The Case of the Flapping BGP Routes: A Network Detective Ride-Along
Let’s go on a Network Detective Ride-Along together! 🙂 YouTube Style! Case open to case closed in less than 15 minutes. You ride along! Below you will find the link to the troubleshooting ride-along as well as 3 very helpful… Read More ›