On 27/01/10 12:06, Ben Dale wrote:
Hi All,
I don't seem to be able to find a definitive answer to this one
either in Juniper's docs, or the very dry RFCs I've been ploughing
through but:
I have an SRX (9.6) running a small IPv6 network (a tunnel and a /48
provided by HE). I have statically allocated a /64 from the /48 to a
vlan interface and enabled RA. Host machines (OSX 10.6.2) on that
VLAN are discovering addresses from that range correctly, and traffic
is being forwarded as expected, but the address they learn for their
router is actually the link-local address on the SRX vlan interface,
rather than the static address that I would expect.
That's normal. Since communication with a router is via the local link,
the "next hop" of an RA is the link-local address.
It's perfectly possible (if confusing) for a router to not have an
address within the prefix, but still advertise it.
This puzzles people in Cisco-land with HSRPv6, where the address which
is floated is also link-local.
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