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sixlowpan nd: ignore empty eui64 in neighbor cache

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This commit is contained in:
Oleg Hahm 2015-09-16 03:22:03 +02:00
parent d7546d0f0c
commit 3c6202e8ed
1 changed files with 2 additions and 1 deletions
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3
sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c
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@ -312,7 +312,8 @@ uint8_t gnrc_sixlowpan_nd_opt_ar_handle(kernel_pid_t iface, ipv6_hdr_t *ipv6, ui
if ((nc_entry != NULL) &&
((gnrc_ipv6_nc_get_type(nc_entry) == GNRC_IPV6_NC_TYPE_REGISTERED) ||
(gnrc_ipv6_nc_get_type(nc_entry) == GNRC_IPV6_NC_TYPE_TENTATIVE)) &&
(ar_opt->eui64.uint64.u64 != nc_entry->eui64.uint64.u64)) {
((nc_entry->eui64.uint64.u64 != 0) &&
(ar_opt->eui64.uint64.u64 != nc_entry->eui64.uint64.u64))) {
/* there is already another node with this address */
DEBUG("6lo nd: duplicate address detected\n");
status = SIXLOWPAN_ND_STATUS_DUP;