RE: gretap tunnel redirecting 2 different networks on destination host to nics

 

I managed to make this windows server unreachable somehow. So I extended 
the test just by simply adding eth1 to the bridge.

This did not seem to affect the connectivity of 172.16.1.x. However from 
this point, I could not ping from the br0 172.16.1.y anymore. Although I 
see with tcpdump icmp and arp packets on the eth2 interface and nothing 
on eth1.

When I only remove eth1 with brctl delif br0 eth1, ping is working to 
172.16.1.y. Do you know what this could be? 


               +-----------+           
               |    BR0    |           
   172.16.1.y  |           |      172.16.1.x
       --------|ETH2   TUN1|-------           
               |           |           
               |           |      172.16.1.x
               |       TUN2|-------           
       --------|ETH1       |
               +-----------+