Skip to main content

CCNA Recap: IPv6



IPv6 Router Solicitation

* FF02::2

IPv6 uses an Extension Header.
A Router Solicitation w/ IPv6 looks like FF02::2

Valid IPv6 Addresses




* Eight groups of
* four hexidecimal digits that
* represent sixteen bits =
* two octects

Ipv6 Router Advertisement
* Type 134
* Prefix length must be 64 bits (4 groups)


The below has the feeling of being directly copied from somewhere, but I'm not finding where.

For the purpose of applying an access list to a particular interface, the ipv6 traffic-filter  IPv6 command is equivalent to the access-group IPv4 command. The direction in which the traffic is examined (in or out) is also required.


IPv6 address to MAC address resolution is performed through the exchange of ICMPv6 neighbor discovery packets comprised of neighbor solicitation and neighbor advertisement packets. Unless these packets are permitted on a router interface, the interface will not be able to perform MAC address resolution.

The original notes continue


IPv6 Anycast
* one to nearest comm model
* same address for multiple devices
* delivery of packets to the group interface closest to the sending device

EMPLOYERS: This is me reviewing concepts I have been tested on and passed in the past. 
Labels:

Comments

Post a Comment

Popular posts from this blog

Connecting IoT Devices to a Registration Server (Packet Tracer, Cisco)

In Packet Tracer, a demo software made by Cisco Systems. It certainly has changed a lot since 2016. It's almost an Olympic feat to even get started with it now, but it does look snazzy. This is for the new CCNA, that integrates, among other things, IoT and Automation, which I've worked on here before. Instructions here . I don't know if this is an aspect of "Let's make sure people are paying attention and not simply following blindly", or an oversight - The instructions indicate a Meraki Server, when a regular one is the working option here. I have to enable the IoT service on this server. Also, we assign the server an IPv4 address from a DHCP pool instead of giving it a static one. For something that handles our IoT business, perhaps that's safer; Getting a new IPv4 address every week or so is a minimal step against an intruder, but it is a step. There are no devices associated with this new server; In an earlier lab (not shown), I attached them to 'H
Post a Comment
Read more

What Do You Need? [AKA; List of Offered Services / My Next Role] (2020)

UPDATED 2021 I am a trusted outsourced remote consultant for your company.   I enjoy having the flexibility to take on temporary projects from time to time! I start at part-time, temp work for now. If we like each other, we can renegotiate. If anything sounds weird, out there, or unusual - Feel free to e-mail me , because I probably think it's awesome. 3 Services Offered Technical: Cloud Technician     Azure [ See tag ] Subcategories: Infrastructure As Code (Specifically Terraform/Azure and CloudFormation/AWS ) Azure Networking I really like the Azure space, and will continue down that path.  Support [Web: Example Job Description ] [Text : Example Description ]     I help you with adjustments in HTML, CSS, and Javascript.     When you email a business a question and they answer? That's me.   Auditing :  Something doesn't work on your page or in your app. I can find it. [ Here ] [ Example Job Description ]   I really enjoy testing apps and webpage concepts! I have an
Post a Comment
Read more

Using Terraform and AWS Cloud9

Wanted to try Cloud9 but didn't feel like making an EC2 instance in the GUI. So I made a Terraform file instead, remade a default VPC, and it took 20 minutes of troubleshooting. #AWS — Morgan (@runtcpip) February 1, 2022     👉🏾 Find the Notion page of this post here , if it's easier for you. It certainly looks nicer!   Setup: An EC2 instance A reference to the default VPC, which I had to remake, as I had deleted mine.    Downloading Terraform into Cloud9: Instructions here . Done and Done. Now, How About Using It? The kicker (or blessing) is that Cloud9 doesn't auto save, like I’ve set my VSCode up to do. Had to do a lot of manual saving, but it wasn’t a struggle. The lock file is created, but I don't see it in my file system to the left until resources have been pushed, so I made a simple bucket to try it out. Because this instance is attached to my AWS account, I suppose anything I make within this will be as well. Let's see! Does Every Terraform Command
Post a Comment
Read more