4 ms·
> There's a different protocol to do the same job. Or two if you want, RA and ND. Router advertisement, neighbour discovery. > DHCPv6 does exist, but I don't r
by growse 6y ago
> There's a different protocol to do the same job. Or two if you want, RA and ND. Router advertisement, neighbour discovery.
> DHCPv6 does exist, but I don't really understand what it offers over RA+ND.
How does RA/ND solve the problem of client auto-configuration of services? Rightly or wrongly, DHCP has been traditionally used for service discovery ("Hey! Here's some NTP servers, a TFTP server and a SIP server") as well as config discovery (useful for autoprovisioning of many devices) and I didn't think you could achieve that just with RA/ND.
Has anyone managed to get netboot or PXE working on IPv6 without DHCP?
Edit just saw a sibling thread about DNS adverts in RA. I guess RA could do all these things, but if it doesn't support it today, DHCP is going to fill the gap.
- Arnt 6y agoOr the gap goes unfilled. We live in an age where small diskless devices are uncommon and another type of small device now called "phone" is common. A small device nowadays doesn't boot from PXE+TFTP, it has its own SSD and doesn't even trust the network.