When having an old Winsdows 2003 dhcp server, which doesn't understand the dhcp identifier OS'es such as Fedora 29 and Ubuntu 18.04 server sends. Which looks like
RFC 4361 should be the RFC about this new way to identifying hosts.
When I take a CentOS 7 as dhcp server, which should support this, both Fedora and Ubuntu presents the MAC address, which I did not expect, as one has to add
send dhcp-client-identifier = hardware;
/etc/dhcp/dhclient.conf disable this new method on Fedora and Ubuntu.
Can someone explain if this new method is just "protocol" and therefore something the Linux admin will never see, if the dhcp server supports this?
In order words, will the DHCP reservations still be based on MAC addresses or this new method?