From: Fernando Gont <fg...@si6networks.com> Date: Fri, 1 May 2020 00:51:47 -0300
> Implement the upcoming rev of RFC4941 (IPv6 temporary addresses): > https://tools.ietf.org/html/draft-ietf-6man-rfc4941bis-09 > > * Reduces the default Valid Lifetime to 2 days > The number of extra addresses employed when Valid Lifetime was > 7 days exacerbated the stress caused on network > elements/devices. Additionally, the motivation for temporary > addresses is indeed privacy and reduced exposure. With a > default Valid Lifetime of 7 days, an address that becomes > revealed by active communication is reachable and exposed for > one whole week. The only use case for a Valid Lifetime of 7 > days could be some application that is expecting to have long > lived connections. But if you want to have a long lived > connections, you shouldn't be using a temporary address in the > first place. Additionally, in the era of mobile devices, general > applications should nevertheless be prepared and robust to > address changes (e.g. nodes swap wifi <-> 4G, etc.) > > * Employs different IIDs for different prefixes > To avoid network activity correlation among addresses configured > for different prefixes > > * Uses a simpler algorithm for IID generation > No need to store "history" anywhere > > Signed-off-by: Fernando Gont <fg...@si6networks.com> Applied, thanks.
