Ah, ok.
IPv6 is enabled by default on Win Vista/7/8, and W2K8/12.
IPv6 is not enabled by default on most routers, which includes Vyatta (at least up to 6.5 I have played with).
"fe80::" addresses are known as "link-local address", and can only access each other on the local subnet...an fe80:: address CANNOT be routed.
When you ping an "fe80::" address, you must use the form 'ping <target fe80::addr>%<your-ipv6-intf-id>, so from DC do "ping fe80::85a4:9b1c:4809:c0b6%13"
A few relevant books to get:
Guide to TCP/IP, 4th Edition - TCP/IP - both IPv4 & IPv6 covered!!!
IPv6 Fundamentals
Understanding IPv6
fyi, device interfaces can (and generally will) have multiple-valid IPv6 addresses...we don't have that in IPv4. Link-Local addresses are used for comms on local subnet, "Global Unicast Addresses" are used to get "off-net" - but that function will be the client sending to its default gateway's Link-Local addr.......lots of new stuff for you to learn :-)
hth...Jeff
Jeff Carrell
