[DRBD-user] Restricting Ethernet interface used?

Luciano Miguel Ferreira Rocha strange at nsk.no-ip.org
Tue Jan 18 02:03:45 CET 2005

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Tue, Jan 18, 2005 at 12:30:48AM +0000, Simon Edwards wrote:
> Hello,
> I'm using DRBD 0.7.6 in a configuration where each of the two hosts have
> eth0/eth1 on the same subnet. For example:
> 
> server1              server2
> eth0: 192.168.0.60   eth0:192.168.0.70
> eth1: 192.168.0.61   eth1:192.168.0.71
> 
> Now when I establish a DRBD device using the "eth1" addressses (as
> confirmed with the "show" output):
> 
> # drbdsetup /dev/drbd0 show
> Lower device: 58:00   (/dev/vg01/lv01)
> Meta device: 58:01   (/dev/vg01/lv01_meta)
> Meta index: 0
> Disk options:
> Local address: 192.168.0.61:9901
> Remote address: 192.168.0.71:9901
> Wire protocol: C
> Net options:
>  timeout = 6.0 sec (default)
>  connect-int = 10 sec (default)
>  ping-int = 10 sec (default)
>  max-epoch-size = 2048  (default)
>  max-buffers = 2048  (default)
>  sndbuf-size = 131070  (default)
>  ko-count = 0  (default)
> Syncer options:
>  rate = 5000 KB/sec
>  group = 0  (default)
>  al-extents = 127  (default)
> 
> 
> The IP addresses in the above output look correct - however the device
> starts getting used the "eth0" addresses appear to take the traffic. The
> "netstat" output confirms this;
> 
> # netstat -an|grep 9901
> tcp        0      0 192.168.0.61:9901       192.168.0.70:33174
> ESTABLISHED
> tcp        0      0 192.168.0.60:33093      192.168.0.71:9901
> ESTABLISHED

Try specifying the interfaces to use to the linux kernel:

192.168.0.61:
route add -host 192.168.0.71 dev eth1

192.168.0.71:
route add -host 192.168.0.61 dev eth1

Regards,
Luciano Rocha



More information about the drbd-user mailing list