Hey guys, I've got a question about how addressing within my home network can be handled with IPv6 service from Comcast. It is live in my area and my CM supports it (Motorola SB6140).
In my mind there seems to be a dilemma and I'm wondering if I am simply overlooking something.
My network is a bit strange for a "home" network but please bear with me -- I love the flexibility and learning experience it provides.
Currently I have my cable modem connected to a Cisco 2911 router with DHCP and NAT overloading configured. The 2911 is connected to a Cisco 2960G gigabit switch, which has two computers connected, both on the same VLAN and with static IPs. I also have a Linksys E3000 router connected to the switch on another VLAN, which I use for my Wi-Fi and also connect my printer to via Ethernet with DHCP.
RIP routing is configured between the E3000 and the 2911, and both VLANs are trunked (via 802.1Q) on the connection from the 2960 to the 2911. All of this is behind the NAT I first described, so it's all in the private IP address space.
How does Comcast provide its IPv6 service? Only through DHCP or SLAAC for a residential connection? Since NAT is rendered pretty useless with IPv6, do all connected devices just get dished out global IPs dynamically? And in that case, wouldn't that make it impossible for me to have more than a single VLAN or to statically assign IPs to any of my devices? Or does Comcast provide an IPv6 range for customers to do what they want with? With the sheer size of the address space, I don't see how anything short could be reasonably justified.
Am I totally missing something here? Any help or input would be greatly appreciated! :)
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