IPv6 Buzz 110: The Peculiar Power Of DHCPv6 Option 108

On today’s IPv6 Buzz podcast, Scott and Tom talk about DHCPv6 Option 108. Option 108 basically allows a DHCP server to use IPv4 to contact a host and tell that host to disable its IPv4 stack and switch to IPv6-only. In other words, you’re using IPv4 to turn off IPv4. This peculiar capability is proposed in RFC 8925: IPv6-Only Preferred Option for DHCPv4. We discuss: * DHCPv6 Option 108 and what it does * Operational use cases for this option * Current OS support * Using Option 108 to turn off IPv4 for short intervals instead of permanently * How Option 108 fit into the larger picture of DHCPv6 in particular and IPv6 auto-addressing in general Thanks for listening! Sponsor: ITProTV Start or grow your IT career with online training from ITProTV. From CompTIA to Cisco and Microsoft, ITProTV offers more than 5,800 hours of on-demand training. Courses are listed by category, certification, and job role. IPv6 Buzz listeners can sign up and save 30% off all plans. Go to itpro.tv/buzz and use promo code BUZZ to save 30%. Show Links: IPv6-Only-Preferred Option for DHCPv4 (RFC 8925) – IETF IPv6 Router Advertisement IPv6-Only Flag – IETF Your Hosts: * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg