Can any of IPv6 experts comment on this? My understanding is that for
IPv6 even at L2 there shouldn't be broadcast address and should use
multicast address.
--
Regards,
Akshaya N
-----Original Message-----
From: Akshaya Nadahalli <aksh...@rtbrick.com>
To: vpp-dev@lists.fd.io
Subject: Neighbor Solicitation MAC
Date: Fri, 13 Oct 2017 14:39:42 +0530
Hello,
We see that IPv6 Neighbor solicitation messages sent by VPP are
having Ethernet Destination MAC address as FF:FF:FF:FF:FF:FF - Broadcast
MAC.
Aren't IPv6 Neighbor solicitation messages supposed to have
destination MAC as - 33:33:FF:<Last 3 bytes of IPv6 address>?
VPP sent NS messages:
14:23:13.721695 88:a2:5e:b5:37:8d (oui Unknown) > Broadcast, ethertype
IPv6 (0x86dd), length 86: 1::1 > ff02::1:ff00:3: ICMP6, neighbor
solicitation, who has 1::3, length 32
Linux sent NS messages:
14:36:00.731147 d2:bc:70:75:5e:f2 (oui Unknown) > 33:33:ff:00:00:01 (oui
Unknown), ethertype IPv6 (0x86dd), length 86: 1::2 > ff02::1:ff00:1:
ICMP6, neighbor solicitation, who has 1::1, length 32
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