These messages are caused by the fact that in default configuration, the DHCP lease record (which station was assigned which IP address) are held only in the RAM of the router or switch. When you reload it, these leases are forgotten, and when DHCP server starts assigning IP addresses anew, it may try to assign an address that is already being used (assigned previously). Hence the messages.
The only solution is to configure a permanent storage for the leases. This is called DHCP Server Database. Information about this functionality and the configuration can be found, for example, here:
In short, the idea is to have the switch store these leases permanently to a network-accessible server via TFTP, FTP or HTTP. When the switch reloads, it downloads the stored leases file and continues assigning the addresses appropriately.
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Hello,We have a pair of N3K-3064PQ-10GX and one of them acting as backup and we want to migrate from VyOS to it, we want to add 500x interface vlan and each interface vlan has its own ip/prefixes (for example /30 /29 ...) and we ahve 6-8x BGP session with...
We live in an age that is both thrilling and evolving substantially. A new trend/technology is always on rise even before the preceding has been used to its fullest potential. Although the concepts of digital transformation may seem over discussed, ...
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Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.