Make network card visible on the host about elks HOT 2 CLOSED

The simplest way is to use the host-to-guest forwarding of the user VLAN, and dump the forwarded packets, with the options:

-net user,hostfwd=tcp:127.0.0.1:2323-10.0.2.15:23 -net dump

After starting QEMU, one can use telnet on the host and to try to connect to the redirected port on host side:

telnet 127.0.0.1 2323

The connection (at this stage of development on ELKS networking) will fails, but one can see in the dump the internal NAT router (10.2.0.2) trying to forward to the guest (10.0.2.15), starting with ARP requests to find the right MAC address where to actually send the packets for IP 10.0.2.15:

tcpdump -r qemu-vlan0.pcap

So the guest (actually KTCP) should first respond to that ARP requests, so the router could then forward the TCP packets from the host, and forward the replies to the telnet client on the host.

from elks.

I suggest that these instructions go into the proposed readme-ne2k file.

from elks.