November 16, 2011

Question about DHCP leases

Forums: 

I find that my router waits until the entire lease time passes before renewing, but when I power up my CentOS VM with a dhcp server running and I connect it to the WAN port on my router, my router will follow RFC guidelines and renew when half of the lease time passes. My question is what is my ISP's dhcp server doing to have my router wait until the lease expires before renewing?

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