New Contributor
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8 Messages
Help With IPv6 Prefix Delegation
I've read a bunch of threads here and I don't think I understand what works and what doesn't any more than before I started. Before I spend much more time on this, I thought I'd ask for some help.
According to my account's static IP settings, I've been assigned a /29 IPv4 block and a /56 IPv6 block. I have a Cisco DPC3941B, which is in psuedo-bridge mode, and a Ubiquiti EdgeRouter Lite.
I'm testing with only two internal physical interfaces right now, but will eventually be utilizing numerous VLANs. It would be great if I could use the entire /56, though I doubt I'll need all 256 /64s.
I think I have the router configured properly for DHCPv6-PD, but it does not appear to be doing what I expect it should be doing. The DHCPv6-PD log is pretty sparse and simply indicates a status code of 'success'.
My WAN interface seems to be getting an address. The two internal interfaces aren't getting addresses and internal test clients aren't receiving addresses.
Any help would be appreciated. Thanks!
curtisv
New problem solver
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26 Messages
8 years ago
Summary:
SMC D3GCCR - no IPv6 (see IPv6 Firmware Rollback on SMCD3GCCR)
Cisco DPC3941B - DHCPv6 doesn't work - /64 is available (see Dual-Stack on SMC D3GCCR and Cisco DPC3939B
Netgear CG3000DCR - DHCPv6 IA_PD always returns /60 - makes /64 + /60 availa\ ble (16 subnets plus DMZ) (see Netgear CG3000DCR IPv6 bugs and quirks )
If you want more than a /64 the first thing you need to do is get the Cisco CM swapped out for a Netgear. That is the status at this point AFAIK.
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pgfitzgerald
New Contributor
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8 Messages
8 years ago
Well that's terribly disappointing. I was reading posts last night going back over two years. How long does it take to get these issues resolved? We're given a /56, but there's not one piece of hardware that will work with anything larger than a /60? And there's even hardware that simply doesn't support DHCPv6-PD? How embarassing.
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