SIP on FTTH systems

Mikael Abrahamsson swmike at
Wed Feb 12 06:29:21 UTC 2014

On Tue, 11 Feb 2014, Frank Bulk wrote:

> In the scenario you're describing does each PC get its own /64 (or /56 
> or /48) directly from the service provider?  Or are they in the same 
> netblock?

They would each get their own /128 via DHCPv6 IA_NA, and they would end up 
having this /128 and a default route, nothing else, so all traffic between 
them on their GUA addresses would go over the ISP connection.

Only way to solve this is for the customer to buy a router that uses 
IA_PD, put the PCs behind it, and then they would be able to communicate 
directly with each other.

Mikael Abrahamsson    email: swmike at

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