[ipv6-wg] IPv6 prefix delegation BCOP document available for comments and suggestions
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Jan Zorz - Go6
jan at go6.si
Thu Mar 30 01:46:53 CEST 2017
On 29/03/2017 09:02, Gert Doering wrote: > Hi, > > On Wed, Mar 29, 2017 at 08:14:59AM +0200, Jan Zorz - Go6 wrote: >>> For a PPPoE link these issues are trivially solved to leaving the link >>> unnumbered. >> >> Again, for those, using a PPPoE dialer that would not work. If you are >> 100% sure that nobody in your network is connecting using a PPPoE >> dialer, > > ... and your CPEs can cope with having no GUA on the WAN link (like, > for doing DNS lookups, or such). They *should*, but ... Hey, I'm absolutely not a fan of unnumbered links, to make it clear. However, CPE with unnumbered WAN link will receive a prefix delegation and from this point on, there are many different implementations on different CPEs - some will take first /64 and number the loopback, some will not and just start numbering L3 ports and so on - but as soon as one interface is numbered from PD - CPE uses that to doe DNS and other stuff. Cheers, Jan > >> then yes, go ahead with unnumbered. > > Gert Doering > -- NetMaster >
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