By definition, GRE is used to encapsulate IP/non-IP protocols into IPv4/IPv6, in the following lab we will encapsulate IPv6 into IPv4, so the outer packet has IPv4/6 source and destination addresses and the inner packet GRE, has IPv6 source and destination addresses (figure 1).

Figure 1: Packet encapsulation…

If you already grasp QoS concepts for IPv4, IPv6 QoS is a piece of cake!

As with IPv4, IPv6 uses MQC (Modular QoS CLI) to configure Diffserv (Differentiated services) QoS.

IPv6 QoS is very similar to IPv4 QoS except for some details:

• NBAR, the first version, doesn't support IPv6.
• cRTP (Compressed-RTP).
• No way to match directly RTP.
• CAR (Committed Access Rate) replaced by CB- Policing…

IPv6 EIGRP and IPV4 EIGRP are very similar in concept except for the following differences:

• IPv6 is configured on interface basis (like OSPFv3 and RIPng) and networks are advertised based on interface command.
• When configured on interface, IPv6 EIGRP is initially placed in “shutdown” state.
• As with OSPFv3, IPv6 EIGRP require a router-id in IPv4 format.
• Passive interfaces can only be…

The theory put forward by the IETF was simple enough… while there were still enough IPv4 addresses use transition technologies to migrate to dual stack and then wean IPv4 off over time. All nice and tidy. The way engineers, myself included, liked it. However those controlling the purse strings had a different idea. There's was, don't spend a cent on protocol infrastructure improvement until the absolute last minute - there's no ROI in IPv6 for shareholders. Getting in front…

I have been studying this book with the intent of obtaining Cisco CCNA certification.  However, I noticed several errors in the chapter on IPv6.  I have been in contact with the author about this and he said he will be updating that chapter to correct the errors I pointed out.  I have the Deluxe Edition, 6th edition, revised and updated for 2011, but I believe the errors may also be in the 7th edition.  So, if it's on the shelf now, it will likely contain those errors.  Wait for one with a…

I have noticed that many problems people experience are due to not understanding IPv6 and how it differs from IPv4.  There is one book that contains a lot of useful IPv6 information.  It is IPv6 Essentials, by Sylvia Hagen and published by O'Reilly.  It's available in both paper and e-book versions.  What's nice about the e-book version is purchasers are entitled to free updates.  I refer to this book…

So we have two camps out there at present, even split amongst continents.  One sits firmly on the Anti-CGN concept & the other is pro.  Now with transition technologies we don't have much of a choice considering there is really not an  "industry wide" roadmap to handle IPv6 and its transition, which opens another can of worms, and thus we are fractured on our future.  I would much prefer we come to an agreement of the future as an industry and be done with it, focus our resources on that…

I don't recall if I mentioned this before, but there's an IPv6 port scan site, which you can use to check your firewall on IPv6.

IPv6 TCP Port Scanner

Don't miss the largest IPv6 conference in North America.

The Rocky Mountain IPv6 Task Force (RMv6TF), in conjunction with Regional North America IPv6 Task Forces is pleased to host the 2013 North American IPv6 Summit technology conference on April 17-19, 2013.

Join more than 500 IPv6 networking professionals who plan to attend, ranging from technology leaders, systems architects,…

I just received a Cisco SG 300-10 switch, and I am a relative novice working with smart switches, so bear with me. I added a VLAN VLAN 2 and WS-C3750V2-24PS-S assigned port 7 to it. So now there is the default VLAN 1 and VLAN 2.

I changed the system mode to Layer 3 from Layer 2 since I assume I need to do this in order for one VLAN to see devices on another. I have a dumb switch attached to…

Just checked out my old Foundry FES2402 switch and figured out that it's being on friendly terms with latest revision of internet protocol ;) ... And so, i successfully deployed it.

BR-SSH@pigiron#sh ipv6 int

Interface      Status     Global Unicast Address

VE 1           up/up      2a01:d0:808c:1::66/64

BR-SSH@pigiron#sh ipv6 route

IPv6 Routing Table - 2 entries:

Type Codes: C - Connected, S - Static, R - RIP, O - OSPF, B - BGP

Type…

By Gina Nienaber, Marketing Manager, Service Provider (SP) Marketing Routing and Switching, Cisco

The theme of this year’s V6 World Congress, happening in Paris, March 19-22, is “Going Mobile.” With the advent of the Internet of Everything and the proliferation of mobile devices well underway, there will be a lot to talk about. And this year, you will have the unique opportunity to hear from leading service providers, including Verizon Wireless and T-Mobile, who have already made the…

Hello,there is anyone can help me to pass enthusiast level with hurricane electrics please?I have installed gogo6 freenet with assigned domain,but on the hurricane electrics test in the end show me a message i can,t grab the file via HTPP ipv6.I tried everithing for days but still going back to square one.

gogoNET LIVE! 3 was another terrific meeting of the top IPv6 minds in the industry.  Day 1 consisted of four parallel workshop tracks ranging in difficulty from absolute beginner to expert.  Day 2 started with a keynote address from…

I tested Marc Hause's new version of flood_router6, and it kills Windows Server 2012 and Mac OS X.

Explanation and a video here:

http://samsclass.info/ipv6/proj/RA_flood2.htm

Abstract:…

My presentation will cover how reverse proxies can be used to provide an IPv6 entry point to existing IPv4 services.  I will cover what to look out for in dual stack implementations and some things to be aware of at the application layer.

IPv6 traffic is growing,  so some users out there have to originate their sessions with IPv6 preference, some IP networks recognize IPv6 access and some enterprises respond proudly when their quad A address gets resolved. The industry verticals, the networks and the countries leading the charge are not exctly what we expected even a couple of years ago. Based on some recent data and trends we will try to get at least some clarity as what to expect.

Looking forward to see you…

My presentation will share deployment experience from Cisco's internal network and focus on running IPv6 on large, public campus networks and IPv6-only WiFi. The session should be useful for anyone dealing with IPv6 roll out or BYOD environments.

I'm really looking forward to presenting at gogoNET LIVE! 3