Hi all.
I would need to use a single physical interface on a Linux box to manage
two different IP addresses (belonging to two separate logical subnets)
with two different MAC address. (I need to emulate te presence of two
separate physical interfaceses for a PC on the same LAN, at layer 2 and
layer 3).
Is it possible to use the linux ethernet bridging code and two tap
interfaces for this purpose?
Here is a picture of what I need to do.
LAN__________________________________
|
| eth0 (no IP)
________|________
| |
| br0 |
| (no IP) |
|_________________|
tap0 | | tap1
192.168.40.1/24 | | 192.168.30.1/24
MAC_0 | | MAC_1
__|________|__
| |
| PC |
| |
|______________|
I would need this picture to be equivalent to this one:
LAN__________________________________
eth0 | | eth1
192.168.40.1/24 | | 192.168.30.1/24
MAC_0 | | MAC_1
__|________|__
| |
| PC |
| |
|______________|
I tried but it doens't work. I don't know if it's not contemplate or if
I did a wrong configuration.
For example, on tap0, using tcpdump, I see all the L2 broadcast frames
going on the LAN; but on the counters of "ifconfig tap0" all of them are
considered dropped. No packet is counted as transmitted or received,
also if I try to ping from or to tap0.
The tap interface starts to transmit/receive pachets only if it is
connected to some process like qemu or openvpn.
Maybe, it is not possibile for tap interface to be used directly by the
linux os?
Thanks!
Antonio
_______________________________________________
LARTC mailing list
LARTC@xxxxxxxxxxxxxxx
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
