How can I get the 10.11.12.x traffic received on tun1 at host B to eth2,
and traffic 172.16.1.x to eth1?
When I put the tun1 interface of server B in a bridge with eth1 I am
able to ping several 172.16.1.x ip's from server A. And communication on
this network seems to be ok.
When I add eth2 to the bridge, the whole network goes down. (Because of
a 'loop'?)
I thought of creating a 2nd gretab tunnel and use each tunnel for a
network, but I think there is probably a better solution. I also don’t
think iptables should be necessary, because I don’t want to do any
natting (However I have default policy DROP on INPUT, OUTPUT, FORWARD)
I have a server A that sends 172.16.1.x and 10.11.12.x traffic via a
gretab tunnel 192.168.1.x to server B. (Putting vms with a macvtap on
tun1 on host A)
+-------------+ +------------+
172.16.1.x | B | | A |
-------|eth1 | 192.168.1.x GRETAP | |
| tun1|-----------------------------|tun1 |
10.11.12.x | | | |
-------|eth2 | | |
+-------------+ +------------+
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