Not a hardware issue, no you can not as you do not choose what address you get, and the only thing that would matter would be the modem (in your list) but... again... not in your control.
I just realized that I use the Linksys BEFCMU10 version 3 Ethernet/USB Cable Modem with Comcast 15Mbps but am topping out at 21Mbps. Is this compatible with IPv6?
reply to floydb1982 Residential networking gear has very spotty support for IPv6 so the router probably will not support IPv6. Check the manual, if it does not mention IPv6 it doesn't support it.
Whether or not the wired and wireless network adapters support IPv6 depends on the O/S of the computer they are in.
IPv6 vs IPv4 has nothing to do with speed. The primary advantage of IPv6 is hugely increased address range. IPv4 is limited to about 4-billion addresses.
Comcast has been pretty aggressive with beta IPv6 support but it is not available everywhere. If it is not supported in your area you are out of luck until they do. There is such a thing as IPv6 tunneling over IPv4 but I doubt that is something you are interested in.
For optimum support of IPv6 you need to use a DOCSIS 3 modem.
I just realized that I use the Linksys BEFCMU10 version 3 Ethernet/USB Cable Modem with Comcast 15Mbps but am topping out at 21Mbps. Is this compatible with IPv6?
Go to »mydeviceinfo.comcast.net/ and see if that particular modem is listed with a checkmark in the IPv6 column (you can do that just as easily as I can do it for you).
For the rest of the gear mentioned in your post, go the the appropriate vendor's support site and read the documentation (or ask the question there). The answers you get that way will likely be much more accurate than any opinion you get here. -- History does not long entrust the care of freedom to the weak or the timid. -- Dwight D. Eisenhower
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