Sujet : Re: I never thought of this scenario
De : rich (at) *nospam* example.invalid (Rich)
Groupes : comp.os.linux.miscDate : 20. Apr 2024, 05:51:46
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <uvve4i$3f4ea$2@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14
User-Agent : tin/2.6.1-20211226 ("Convalmore") (Linux/5.15.139 (x86_64))
Lawrence D'Oliveiro <
ldo@nz.invalid> wrote:
On Fri, 19 Apr 2024 10:47:44 +0100, The Natural Philosopher wrote:
The key is that the routers between each subnet and the DHCP machine
need to be told to route DHCP *in some way*.
Finally, an admission that routability is something that has to be added
via a special tunnelling mechanism, it is not part of the actual protocol.
Thank you for admitting what some other parties still refuse to say.
RFC2131:
https://www.rfc-editor.org/rfc/rfc2131 - page 6:
DHCP should not require a server on each subnet. To allow for
scale and economy, DHCP must work across routers or through the
intervention of BOOTP relay agents.
Note they use "must" above in the statement "DHCP must work across
routers". Page 4 defines "must" as:
o "MUST"
This word or the adjective "REQUIRED" means that the item is an
absolute requirement of this specification.
Therefore the RFC explicitly allows for DHCP to be routed.