I've followed ovs gre setting described at
this<http://blog.scottlowe.org/2013/05/07/using-gre-tunnels-with-open-vswitch/>.
But i couldn't ping from a vm to other vm over gre. I just got packet loss
message from ping command. As i understand ping should go through gre0 and
so on br0 and em0(physical ethernet interface). I'm currently can't figured
out where to start to solve this problem. I attached all data which is
relevant to this problem as i think.
thanks for your help
em1, 2 : physical ethernet interface.
vnet0 : virtual interface for the vm at host.
default policy for iptables is ACCEPT.
host1
-----------------------------------------------
# ovs-vsctl show
a27e5053-57f1-4abc-ad16-740b991deaf4
Bridge "br1"
Port "vnet0"
Interface "vnet0"
Port "gre1"
Interface "gre1"
type: gre
options: {remote_ip="192.168.100.21"}
Port "br1"
Interface "br1"
type: internal
Bridge "br0"
Port "tep0"
Interface "tep0"
type: internal
Port "em2"
Interface "em2"
Port "br0"
Interface "br0"
type: internal
# ifconfig
br0 Link encap:Ethernet HWaddr 78:45:C4:F1:77:D3
inet addr:111.111.104.20 Bcast:111.111.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:87798 errors:0 dropped:0 overruns:0 frame:0
TX packets:8311 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:16964268 (16.1 MiB) TX bytes:4102764 (3.9 MiB)
br1 Link encap:Ethernet HWaddr 06:6F:5E:19:8E:43
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:70 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7424 (7.2 KiB) TX bytes:0 (0.0 b)
em1 Link encap:Ethernet HWaddr 78:45:C4:F1:77:D1
inet addr:172.16.143.20 Bcast:172.16.143.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1013749 errors:0 dropped:0 overruns:0 frame:0
TX packets:591839 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:116551436 (111.1 MiB) TX bytes:190337381 (181.5 MiB)
Interrupt:36 Memory:d6000000-d6012800
em2 Link encap:Ethernet HWaddr 78:45:C4:F1:77:D3
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:271696 errors:0 dropped:0 overruns:0 frame:0
TX packets:31348 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:52996899 (50.5 MiB) TX bytes:13088219 (12.4 MiB)
Interrupt:48 Memory:d8000000-d8012800
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:77086 errors:0 dropped:0 overruns:0 frame:0
TX packets:77086 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9595600 (9.1 MiB) TX bytes:9595600 (9.1 MiB)
tep0 Link encap:Ethernet HWaddr 76:EE:E6:89:FE:46
inet addr:192.168.100.20 Bcast:192.168.100.255
Mask:255.255.255.0
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:79785 errors:0 dropped:0 overruns:0 frame:0
TX packets:155 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9641257 (9.1 MiB) TX bytes:15049 (14.6 KiB)
vnet0 Link encap:Ethernet HWaddr FE:0D:45:A3:92:EA
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:271 errors:0 dropped:0 overruns:0 frame:0
TX packets:35 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:25038 (24.4 KiB) TX bytes:3498 (3.4 KiB)
# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
192.168.100.0 * 255.255.255.0 U 0 0 0 tep0
172.16.143.0 * 255.255.255.0 U 0 0 0 em1
link-local * 255.255.0.0 U 1002 0 0 em1
111.111.0.0 * 255.255.0.0 U 0 0 0 br0
default 111.111.104.1 0.0.0.0 UG 0 0 0 br0
host2
-----------------------------------------------
# ovs-vsctl show
5dcbfca3-e518-4214-8c23-7b89b30719ad
Bridge "br0"
Port "br0"
Interface "br0"
type: internal
Port "tep0"
Interface "tep0"
type: internal
Port "em2"
Interface "em2"
Bridge "br1"
Port "br1"
Interface "br1"
type: internal
Port "gre1"
Interface "gre1"
type: gre
options: {remote_ip="192.168.100.20"}
Port "vnet0"
Interface "vnet0"
# ifconfig
br0 Link encap:Ethernet HWaddr D4:BE:D9:AC:F0:CF
inet addr:111.111.104.21 Bcast:111.111.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:87006 errors:0 dropped:0 overruns:0 frame:0
TX packets:13260 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:12556550 (11.9 MiB) TX bytes:4318048 (4.1 MiB)
br1 Link encap:Ethernet HWaddr CA:5A:E9:93:13:4A
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:70 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7424 (7.2 KiB) TX bytes:0 (0.0 b)
em1 Link encap:Ethernet HWaddr D4:BE:D9:AC:F0:CD
inet addr:172.16.143.21 Bcast:172.16.143.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:903898 errors:0 dropped:0 overruns:0 frame:0
TX packets:417417 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:101599551 (96.8 MiB) TX bytes:116662118 (111.2 MiB)
Interrupt:36 Memory:d6000000-d6012800
em2 Link encap:Ethernet HWaddr D4:BE:D9:AC:F0:CF
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:287767 errors:0 dropped:0 overruns:0 frame:0
TX packets:48626 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:54416236 (51.8 MiB) TX bytes:14369437 (13.7 MiB)
Interrupt:48 Memory:d8000000-d8012800
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:186515 errors:0 dropped:0 overruns:0 frame:0
TX packets:186515 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:21395412 (20.4 MiB) TX bytes:21395412 (20.4 MiB)
tep0 Link encap:Ethernet HWaddr 5A:97:DC:14:AD:B8
inet addr:192.168.100.21 Bcast:192.168.100.255
Mask:255.255.255.0
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:77121 errors:0 dropped:0 overruns:0 frame:0
TX packets:156 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:13815665 (13.1 MiB) TX bytes:14693 (14.3 KiB)
vnet0 Link encap:Ethernet HWaddr FE:0D:45:A3:92:EA
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:51 errors:0 dropped:0 overruns:0 frame:0
TX packets:26 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:4170 (4.0 KiB) TX bytes:1136 (1.1 KiB)
# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
192.168.100.0 * 255.255.255.0 U 0 0 0 tep0
172.16.143.0 * 255.255.255.0 U 0 0 0 em1
link-local * 255.255.0.0 U 1002 0 0 em1
111.111.0.0 * 255.255.0.0 U 0 0 0 br0
default 111.111.104.1 0.0.0.0 UG 0 0 0 br0
vm at host 1
-----------------------------------------
eth0 : 10.123.123.20
vm at host 2
-----------------------------------------
eth0 : 10.123.123.21
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