On Tue, Apr 25, 2000 at 09:15:22AM -0700, Siddharth Mathur wrote:
> i am specifying ETH_P_IP as my protocol in the socket
> call, is it right?
> what is ETH_P_802_3 used for?
> the linux/if_ether.h file defines it as 'dummy type
> for 802.3 frames'...
> why the 'dummy'?
>
> do i need to bind the socket to eth0 first?
Either pass a valid interface index in the sockaddr_ll (!= 0),
or bind first.
This is documented in packet(7) BTW:
`` sll_ifindex is
the interface index of the interface (see netdevice(2) );
0 matches any interface (only legal for binding). ''
>
> even if the sendto is successful will the transmitted
> packet show
> in the TX packets on doing ifconfig?
Yes.
>
> how is PACKET_OTHERHOST different from the above?
PACKET_OTHERHOST is only valid for RX packets and is used
for packets not destined to this host (foreign packets when the interface
is in promiscuous mode)
-Andi
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