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Missing IPv6 ICMPv6 Neighbor Solicitation with promiscuous mode turned off
From: Paul Sheer <paulsheer () gmail com>
Date: Thu, 23 Feb 2012 12:20:51 -0600
With promiscuous mode turned off, libpcap successfully captures
ARP requests (since they are sent to hw address ff:ff:ff:ff:ff:ff).....
However I would expect the same behavior with IPv6 ICMPv6
Neighbor Solicitation requests. These requests have the
destination HW address of 33:33:xx:xx:xx:xx (a multicast
address). I.e. I would not have thought that it be necessary
to use promiscuous mode to see the Neighbor Solicitations.
Note that we are using libpcap in a long-running application and
would prefer not to use promiscuous mode.
Is this a known problem?
Does anyone know of a fix?
I am using:
tcpdump version 3.9.4
libpcap version 0.9.4
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- Missing IPv6 ICMPv6 Neighbor Solicitation with promiscuous mode turned off Paul Sheer (Feb 23)