Configuring NTP for IPv6 on Cisco Networks
Configuring NTP for IPv6 on Cisco Networks
In my last blog I discussed Configuring HSRP for IPv6 on Cisco Networks. Since it was already on my mind, I decided to continue the IPv6-oriented blogging and show how to configure and verify NTP for IPv6. Let’s see how it works.
First, let’s see the topology I am using, shown in figure 1:
For instructor-led Cisco training see our CCNA class schedule.
Figure 1-NTP for IPv6 topology
I will not show the configuration of the IPv6 addresses on the interfaces or the routing (it is all static for this scenario), I will just show the IPv6 – NTP – related configs.
On R1, figure 2 shows the relevant config:
Figure 2-R1 NTP config
Figure 3 shows what is happening on R2:
Figure 3-R2 NTP config
It turns out that the IPv6 address shown in figure 3 is the IPv6 address that is on loopback 100 of R1. The last piece is R3. Figure 4 shows that:
Figure 4-R3 NTP config
In like manner, the IPv6 address shown in figure 4 is the IPv6 address that is configured on R2’s loopback 100 interface.
Now let’s verify NTP messages are occurring. I issued a couple of debug commands on R2, shown in figure 5:
Figure 5-R3 R2 debug output
Clearly I can verify that the NTP messages are appearing, and most assuredly they in IPv6 format! I’m thinking this IPv6 thing is eventually going to take off! J
Since we are here, let’s check the clock on R3:
Figure 6-R3 R3 show clock detail
And that’s the way it is, Friday, September 11th, 2015.
If you have any comments or questions, please feel free to post them….
Until next time.
Mark Jacob
Cisco and CompTIA Network + Instructor – Interface Technical Training
Phoenix, AZ
You May Also Like
CCNA, debug ntp packets, IPv6, NTP, NTP master, ntp server, show clock detail
How to Configure Navigation in SharePoint Publishing Sites
0 1226 3For more SharePoint training videos in this series, see: Part 1 – Using Navigation Controls in a Collaboration Site in SharePoint Part 2 – Using Navigation Controls in a Publishing Site in SharePoint Part 3 – Configuring SharePoint Navigation in a Publishing Site – Activating the Publishing Feature Part 4 – » How to Configure Navigation in … Continue reading How to Configure Navigation in SharePoint Publishing Sites
IPv6 Port Redirection
0 347 0In this video, Cisco CCNA and CompTIA Network + Instructor Mark Jacob demonstrates how to do port redirections in IPv6. If you have any questions or comments, please feel free to post them. Until next time. Mark Jacob Cisco and CompTIA Network + Instructor – Interface Technical Training Phoenix, AZ
Identifying and Fixing Misconfigured Subnet Masks in Your Network Environment
0 411 1In this video, Cisco CCNA instructor Mark Jacob show how to find and fix misconfigured subnet masks in a typical IT network environment. Mark Jacob Cisco and CompTIA Network + Instructor – Interface Technical Training Phoenix, AZ
See what people are saying...