nanog mailing list archives
Re: Android (lack of) support for DHCPv6
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Wed, 10 Jun 2015 14:03:47 +0200 (CEST)
On Wed, 10 Jun 2015, Baldur Norddahl wrote:
We use DHCPv6 to assign just one IP address to the CPE. This is because otherwise our routers do not know where to route the /48 that is also passed along with DHCPv6-PD.
If you use DHCPv6-PD you only need a LL address, you do not need a GUA address. Yes, a GUA WAN address is nice for fault finding, shows up in traceroute etc, but it's not needed. If your routers require a GUA WAN address in order for DHCPv6-PD to work, then they're not standards compliant.
Apart from operational simplicity, we also do not want our routers to keep track of a million ND cache entries. Our system pushes that down to the CPE. In the network we only have one ND cache entry per customer.
Well, if you have a GUA /128, then you have two per customer (because you'll have the LL one as well). If you didn't use the GUA address, you'd only have one.
-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- DHCPv6 route option (was Re: Android (lack of) support for DHCPv6), (continued)
- DHCPv6 route option (was Re: Android (lack of) support for DHCPv6) Masataka Ohta (Jun 10)
- Re: Android (lack of) support for DHCPv6 Dale W. Carder (Jun 09)
- Re: Android (lack of) support for DHCPv6 Ray Soucy (Jun 09)
- Re: Android (lack of) support for DHCPv6 A . L . M . Buxey (Jun 09)
- Re: Android (lack of) support for DHCPv6 Lorenzo Colitti (Jun 09)
- Re: Android (lack of) support for DHCPv6 Hugo Slabbert (Jun 09)
- Re: Android (lack of) support for DHCPv6 Lorenzo Colitti (Jun 09)
- Re: Android (lack of) support for DHCPv6 Jon Bane (Jun 09)
- Re: Android (lack of) support for DHCPv6 Lorenzo Colitti (Jun 10)
- Re: Android (lack of) support for DHCPv6 Baldur Norddahl (Jun 10)
- Re: Android (lack of) support for DHCPv6 Mikael Abrahamsson (Jun 10)
- Re: Android (lack of) support for DHCPv6 Baldur Norddahl (Jun 10)
- Re: Android (lack of) support for DHCPv6 Mikael Abrahamsson (Jun 10)
- Re: Android (lack of) support for DHCPv6 Baldur Norddahl (Jun 10)
- Re: Android (lack of) support for DHCPv6 George, Wes (Jun 10)
- Re: Android (lack of) support for DHCPv6 Mikael Abrahamsson (Jun 10)
- Re: Android (lack of) support for DHCPv6 Mikael Abrahamsson (Jun 10)
- RE: Android (lack of) support for DHCPv6 Paul B. Henson (Jun 10)
- Re: Android (lack of) support for DHCPv6 A . L . M . Buxey (Jun 10)
- Re: Android (lack of) support for DHCPv6 George, Wes (Jun 10)
- Re: Android (lack of) support for DHCPv6 Lorenzo Colitti (Jun 10)