[dhcwg] Re: Relay Source address advice

Michael Richardson <[email protected]> Tue, 01 Apr 2025 15:23:11 -0400
Newsgroups gmane.ietf.dhc
Message-ID <[email protected]>
Ben Patton <[email protected]> wrote:
    >> I am still surprised that we do not do better with Relay Agents and PD
    >> assignments.   My understanding is that current relay agents do deep
    >> inspection of the DHCP responses to learn what prefix to route to which
    >> end-point.  Those installed routes, ideally, get installed into the IGP by
    >> the router in which the relay agent is installed.
    >>

    > While we were checking through the latest 8415bis, section 19 had language
    > about what to set for Peer Address and Link Address, but not the source of
    > the IP datagram itself as far as we could tell. Other relays that we tested
    > (besides the one mentioned above) picked their source addresses as we
    > expected, with a GUA that matched the configured destination address.

It seems that maybe we don't really need new text in 8415bis, but rather that
one implementation needs some clue applied.

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