Come watch this short and informative video by Todd Lammle on IPv4 and IPv6 headers. Learn why IPv6 is such a great routed protocol and why the header used in Internet Protocol Version 6 (IPv6) is all-around better than Internet Protocol Version 4 (IPv4) and why.
- [Narrator] There are some key differences…in an IPv6 header.…So let's go ahead and take a look at our IPv4 header again.…First you must remember an IPv4 header format…can vary in length.…IPv6 does not.…This is 20 octets in length…compared to IPv6's minimal 40 octets…compared to how large that address space is.…Now we want to remember a couple things.…We have our total length, our type of service,…our protocol field which defines…who owns this data we're carrying.…
Time to live field and our source and destination address.…We also have a fragment offset…because we're going to possibly fragment our IPv4 headers.…Now the basic IPv6 header contains eight fields,…making it only twice as large as an IP header…at only 40 bytes.…Right. Now remember, this could not vary,…so it's more efficient.…Now, so which header do you think, by looking at this,…is equivalent to the time to live field?…Well remember the time to live field in IP version four,…told us how many routers we went through…or what was considered hops.…
So this is now called the hop limit,…
Author
Todd Lammle
Released
9/30/2016For more information on the CCENT exam, visit Cisco's website.
- Overview of internetworking
- Ethernet
- The TCP/IP networking model
- Easy subnetting
- VLSM
- Managing Cisco IOS
- Managing Cisco networks and devices
- IP routing
- Layer 2 switching
- VLANs and InterVLAN routing
- Security
- Network address translation
- IPv6
Skill Level Intermediate
Duration
Views
-
Introduction
-
Welcome54s
-
The CCNA exam58s
-
Lab environment overview1m 3s
-
-
1. Internetworking
-
Internetworking devices4m 20s
-
2. Ethernet
-
Ethernet overview2m 23s
-
Ethernet addressing3m 51s
-
Ethernet cables4m 55s
-
-
3. Introduction to TCP/IP
-
Overview of TCP/IP model2m 40s
-
Application/process layer2m 19s
-
Internet layer3m 37s
-
IP addressing4m 33s
-
-
4. Easy Subnetting
-
Subnet basics1m 28s
-
Subnet block sizing5m 25s
-
Subnet by example5m 6s
-
Class B subnetting3m 53s
-
-
5. VLSM, Summarization, and Troubleshooting TCP/IP
-
VLSM2m 38s
-
VLSM by hand6m 28s
-
-
6. Cisco Internetworking Operating System (IOS)
-
Introduction to the IOS CLI3m 55s
-
Basic CLI commands5m 23s
-
Telnet and SSH5m 4s
-
-
7. Managing a Cisco Internetwork
-
Router and switch components2m 27s
-
Configure DHCP3m 48s
-
-
8. IP Routing
-
Overview of IP routing3m 45s
-
The IP routing process3m 50s
-
Configure IP routing6m 41s
-
Static routing5m 28s
-
Default routing5m 36s
-
Configure RIPv26m 52s
-
Verify RIPv2 routing5m 55s
-
-
9. Layer 2 Switching
-
Configure a Catalyst switch7m 33s
-
Configure port security5m 5s
-
10. VLANs and InterVLAN Routing (IVR)
-
Overview of VLANs3m 2s
-
Configure VLANs3m 8s
-
Configure trunk links5m 15s
-
Configure IVR on a router2m 42s
-
-
11. Security
-
Introduction to access lists2m 24s
-
Configure access lists4m 3s
-
-
12. Network Address Translation (NAT)
-
Introduction to NAT2m 18s
-
Static NAT2m 53s
-
Configure static NAT3m 11s
-
Dynamic NAT2m 44s
-
Configure dynamic NAT3m 44s
-
NAT overload (PAT)3m 56s
-
Configure NAT overload5m 26s
-
-
13. IPv6
-
Introduction to IPv62m 22s
-
Overview of ICMPv62m 55s
-
Configure IPv66m 7s
-
-
Conclusion
-
Next steps51s
-
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.
Share this video
Embed this video
Video: Compare IPv6 and IPv4 headers