Hi,
I would like to check lwip 1.3.2 implementation about multicast/broadcast
implementation.
even though, IP_SOF_BROADCAST_RECV & IP_SOF_BROADCAST defined, ip layer will
drop all multicast and broadcast packet except DHCP protocol. Is this a bug
or intended implementation?
// In ip.c
if (check_ip_src)
{ if ((ip_addr_isbroadcast(&(iphdr->src), inp)) ||
(ip_addr_ismulticast(&(iphdr->src)))) {
/* packet source is not valid */
LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE | 1, ("ip_input: packet source
is not valid.\n"));
/* free (drop) packet pbufs */
pbuf_free(p);
IP_STATS_INC(ip.drop);
snmp_inc_ipinaddrerrors();
snmp_inc_ipindiscards();
return ERR_OK;
}
}
Regards,
--
Bandu
m.ba...@gmail.com
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