Hi, On Mon, Apr 23, 2012 at 12:27:53PM -0400, valdis.kletni...@vt.edu wrote: > On Mon, 23 Apr 2012 11:23:14 -0400, Chuck Anderson said: > > > On Mon, Apr 23, 2012 at 06:38:09AM -0700, Owen DeLong wrote: > >> In a lot of cases, enforcing that all address assignments are via DHCP can > >> still be > >> counter-productive. Especially in IPv6. > > If a specific managed environment provides DHCPv6 and doesn't provide > > SLAAC, and the policies of said environment forbid static addressing, > > That's totally different from Owen's "in a lot of cases". Incidentally, > there's absolutely nothing
except for LLT being the default DUID generation mechanism on pretty much every OS... thanks Enno preventing a DHCPv* server from being configured to > always hand out the same IP address to a given MAC address, making it > effectively static (in fact, I've seen more than one site that carries nailed > down > DHCP entries for servers, just to ensure that even if the server gets borked > and > decides to DHCP itself, it will still come up with the "right" address > anyhow). > > > how can enforcing the use of DHCPv6 be counter-productive? > > Remember, Owen was talking about "in a lot of cases". I suspect Owen was > saying > that if you enforce that all source addresses are ones that the DHCPv6 server > handed out, you just broke a host that tries to do RFC4941 addresses or other > similar things. > -- Enno Rey ERNW GmbH - Breslauer Str. 28 - 69124 Heidelberg - www.ernw.de Tel. +49 6221 480390 - Fax 6221 419008 - Cell +49 174 3082474 PGP FP 055F B3F3 FE9D 71DD C0D5 444E C611 033E 3296 1CC1 Handelsregister Mannheim: HRB 337135 Geschaeftsfuehrer: Enno Rey ======================================================= Blog: www.insinuator.net || Conference: www.troopers.de =======================================================