Re: What is the purpose of mDNS
Thanks for your comments, Tomas and Jeremy.
George
On Saturday, 03-08-2024 at 19:43 jeremy ardley wrote:
>
>
> On 3/8/24 17:26, tomas@tuxteam.de wrote:
> > It is not/for/ multicast IP, it/uses/ multicast for name resolution.
> > In a nutshell [1], it sends a "DNS" request to the local network asking
> > "who is called Fritz here?", and Fritz answers with its IP. So sys-non-
> > admins don't have to set up a name server.
>
> To amplify on that, it is used in situations where there is no DHCP server.
>
> IPv4 clients will then automatically assign themselves an address from
> 169.254.X.X/16 range (X.X is derived from the MAC address)
>
> They then multicast their hostname and IP address to everyone else on
> the LAN using mDNS.
>
> It is not a Microsoft only standard. It is defined in RFC 3927, "Dynamic
> Configuration of IPv4 Link-Local Addresses."
>
> It is used on a wide variety of hosts including Linux.
>
>
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