I have a very simple NTP config that consists of these commands:
ntp source vlan 210
ntp server xxx.xxx.234.10 prefer
ntp server xxx.xxx.234.12
The clock remains unsynchronized. Host xxx.xxx.234.10 is a firewall that gets its time from an internet source. I've verified with our firewall team that there is a rule in place on their firewall to allow my router to get NTP from their firewall.
If I debug NTP, I get this error:
NTP: packet from xxx.xxx.234.10 failed validity tests 20
Peer/Server Clock unsynchronized
Anyone know what that means? I've tried looking it up and got no good tips.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...