Blog tagged as DHCP

Understanding ISC DHCP and “abandoned” leases

22.09.2025 15:48:33 - By Paul Roberts - Comment(s)

I have had several discussions lately relating to the recycling of abandoned leases in Infoblox DHCP (which is based upon ISC dhcpd). There seems to be a common misunderstanding about how the process works.

To recap, an abandoned lease occurs when the DHCP server encounters one of the following situa...

Using Infoblox DHCP failover

02.07.2024 10:41:28 - By Paul Roberts - Comment(s)

Infoblox DHCP is based upon ISC DHCP with a few tweaks here and there. The DHCP failover mechanism that it employs started as a relatively simple 14 page IETF draft proposal (available here) that was implemented in Alcatel-Lucent/Nokia VitalQIP (then Quadritek, the authors of the draf...