Update IPv6 prefix-length and prefix-id for Google Fiber configs

[burkasaurusrex]

It seems as though Google Fiber has switched from provisioning /56 IPv6 addresses to /64. Would be great to update the configs accordingly.

I'm no networking expert, but I updated the prefix-length to /64 and deleted the prefix-ids, and my ERPOE-5 is now issuing IPv6 addresses again.

[stevejenkins]

Thanks. I noticed this too. Bummer. Getting /56 was awesome. :)

I'll update!

[stevejenkins]

Fixed with c5bb7af .

[burkasaurusrex]

I think you may need to clear out the prefix-ids as well? I kept receiving this error when I tried to set it to anything: prefix-id must be less than :: for prefix /64

[wastrachan]

@stevejenkins I'm not sure if Google has gone back on a previous decision... but I lost my PD the other day and spent several days debugging the issue, best I could.

I was able to successfully request a /60 but SLAAC still wasn't working within my network. The only change that got things working again... You guessed it... was increasing my prefix size back to a /56. I can't account for the lack of SLAAC when requesting a /60, Google did acknowledge the request and assign a /60, and I saw RA's in my network, but none of my devices were participating. If I ever come into more knowledge on ipv6 and can figure out what was wrong with the RA's I'll update.

But in the meantime: consider this a report that /64 PD request isn't working for me any longer, and I had to request a /56 to restore connectivity.

[palanjam]

Same for me. Seems like Google went back to the /56 prefix.