The H1N1 Loader appears to be a relatively new downloader family that, to the best of our knowledge, was initially discovered and analyzed by the security community in May 2015. We have seen several samples show up in our malware zoo this Spring and have documented our preliminary findings from a network communications perspective in a short summary report.
These are my notes for IPv6 multicast for the CCDE exam. Overview
IPv6 Multicast Addressing
IPv6 multicast address format includes variable bits to define what type of address it is and what the scope is of the multicast group. The scope can be:
1 – Node
2 – Link
3 – Subnet
4 – Admin
5 – Site
8 – Organization
E – Global
The flags define if embedded RP is used, if the address is based on unicast and if the address is IANA assigned or not (temporary). The unicast based IPv6 multicast address allows an organization to Continue reading
This is a design guide for an enterprise deployment of a dual stack, routed access layer using OSPF as the routing protocol, with a fully routed ECMP core.
The post Dual Stack Routed Access Layer With OSPF Design Guide appeared first on Packet Pushers Podcast and was written by Matt Love.
No Starch Press recently offered me a preview copy of a new book about the GNS3 network simulator, titled The Book of GNS3 written by Jason Neumann. This book covers the new version of GNS3, GNS3 1.x. Here is my review of The Book of GNS3.
The Book of GNS3 effectively serves as a user manual for GNS3. It offers detailed installation and configuration information for GNS3 1.x in one easy-to-access volume. Experienced users will find some new information in this book, especially about the new features available in GNS3 1.x. However, I think the main beneficiaries will be new or inexperienced users of GNS3.
GNS3 is usually used by people who wish to emulate networks of commercial routers from vendors such as Cisco and Juniper. Understandably, Mr. Neumann spends most of the book discussing how to set up GNS3 to run commercial routers and, as much as is possible, switches.
How does this book help those who want to use open-source routers in GNS3? Read the rest of my review to find out.
While I read through this book, I looked for the parts that are relevant to my interests in Continue reading
The HP DemoFriday Q&A on how to enhance optimization & visibility with HP SDN applications is now available.
A second win in China for Nuage.
I was going through a stock photo website the other day and came across a “formula” that was supposed to equal the “perfect job candidate”. I chuckled a little out loud. The person sitting next to me looked over at what was on my laptop screen. Paused. Then asked me what I look for when I’m interviewing someone. What is my “perfect job candidate?”
…. For the rest please go to Packet Pushers
http://packetpushers.net/interviewing-for-the-ideal-candidate-looking-for-nerdvana/
For the new few months in addition to posting here, I’ll be making some blog posts over on Solarwinds‘ Thwack Community in their “Geek Speak” blogs, on the general topic of network management. I won’t be reposting the content here, but I’ll be sharing the links each time I post, and I hope you can find a moment to read them, rate the post if you are that way inclined, and maybe even comment! I know have some very smart readers, and Thwack has some smart users too, so the conversation should be great!
Solarwinds Thwack is a light-hearted community providing specific product support and templates for Solarwinds products, but also offering more general support on networking-related issues through blogs, community forums and product forums. It’s kind of a fun place to dig around, and the users are usually not short of an opinion on most topics. Signing up for an account is easy and free, and then you can post comments and join in the discussion!
Here’s the intro to the first post in the series, called “Do You Monitor Your Network Interfaces? at Geek Speak”
Hope to see you over there!
I am participating in the Solarwinds Continue reading
Managing data center operations and infrastructure.
