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Posted by anoop on April 10, 2007, 6:29 pm
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> 1) How do I find the MAC address for an IPv6 remote host? For IP, I
> use the SIOCGARP ioctl and get the MAC adress from the ARP cache. But
> IPv6 does not use ARP. there is something called neighbor discovery
> for IPv6, but I could not find any programatic interface to use it ..
Try posting to comp.protocols.tcp-ip.
> 2) How do I do a broadcast ping in IPv6? In v4, I just put the
> broadcast address in the destination addr fiend of the IP header and
> things worked, but what do I do for v6?
There is no such thing as broadcast in IPv6. There are only
multicast addresses. You'd have to use one of these such
as the "all nodes" multicast address to reach all nodes
on the local link.
Anoop
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