Re: Missing IPv6 ICMPv6 Neighbor Solicitation with

[Paul Sheer <paulsheer () gmail com>]

> >    Paul> Would anyone consider adding this support to libpcap: i.e. a
> >    Paul> new member within pcap_opt ?
> >
> > I think that it should probably just be on.
> > Principal of least surprise.
>
> Here's why PACKET_MR_ALLMULTI is currently *not* turned on:
>
>        https://sourceforge.net/tracker/?func=detail&aid=599857&group_id=53067&atid=469577


Well I personally would like it to be an extra option then.

It is certainly an important and useful option for the following use case:

libpcap/libdnet are used to implement a lot of special networking
features not supported by the kernel.

Now with the advent of IPv6, multicast is the default way of resolving
addresses (i.e. solicitation).
Anyone trying to implement something to do with IPv6 solicitation is
going to get stuck unless
they use promiscuous mode.
On the other hand IPv4 address resolution does not require a
promiscuous mode setting.

I suspect there will "soon" be a lot more requests for this as people
start to do the weird
things with IPv6 that they are used to being able to do with IPv4.

-paul
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