How to monitor devices with dynamic IP addresses?
Q: We use DHCP in our network, thus IP addresses can change. When address changes, corresponding device “goes red” (monitor is down), even though it works normally. How to avoid that?
A: You can use host’s Poll Using property to specify whether an IP address or a DNS name should be used for connecting to the host.
Switch the Poll Using property to the “DNS Name” value. After that, edit the DNS Name property (put the correct host network name instead of the ip address). This way the IPNetwork will always use the DNS name to connect to host and change of the real IP address wouldn’t affect it.
Related topics
How to prevent devices with dynamic DHCP-provided addresses from being shown in down state?
Check out our Knowledge Base where we answer questions regarding various topics. Set the host Poll Using property to DNS Name and enter the correct DNS name instead of relying on the current IP address. When the device receives a new IP address, IPNetwork Monitor resolves the DNS name again and connects to the current address. Update the DNS Name property with the correct network name for the target device.
Frequently Asked Questions
How can devices with DHCP addresses be monitored reliably?
Why does polling by DNS name help with dynamic IP addresses?
What host property must be updated after switching to DNS polling?