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TM4C Ethernet: Fix the ICMPv6 multicast address

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This commit is contained in:
Gregory Nutt 2015-01-19 14:56:43 -06:00
parent 6d901e4d8b
commit 8c74fb427e
1 changed files with 5 additions and 1 deletions
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6
arch/arm/src/tiva/tm4c_ethernet.c
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@ -3929,6 +3929,10 @@ static void tiva_ipv6multicast(FAR struct tiva_ethmac_s *priv)
* the four low-order octets OR'ed with the MAC 33:33:00:00:00:00,
* so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map
* to the Ethernet MAC address 33:33:00:01:00:03.
*
* NOTES: This appears correct for the ICMPv6 Router Solicitation
* Message, but the ICMPv6 Neighbor Solicitation message seems to
* use 33:33:ff:01:00:03.
*/
mac[0] = 0x33;
@ -3936,7 +3940,7 @@ static void tiva_ipv6multicast(FAR struct tiva_ethmac_s *priv)
dev = &priv->dev;
tmp16 = dev->d_ipv6addr[6];
mac[2] = tmp16 & 0xff;
mac[2] = 0xff;
mac[3] = tmp16 >> 8;
tmp16 = dev->d_ipv6addr[7];