Unable to ping from vm1 to vm2 over GRE with the following settings. I
confirmed that ping between host1(172.16.40.40) and host2(172.16.50.41) was
successfully done without problems. Any help is welcome.
host1# ovs-vsctl show
1313da2c-30b3-4241-a55d-6b846f2db386
Bridge "br0"
Port "eth2"
Interface "eth2"
Port "vm1"
Interface "vm1"
Port "br0"
Interface "br0"
type: internal
Port "t-gre1"
Interface "t-gre1"
type: gre
options: {in_key=flow, out_key=flow,
remote_ip="172.16.50.41"}
Port "eth0"
Interface "eth0"
ovs_version: "1.10.0"
host1# ovs-ofctl show br0 | grep addr
1(eth0): addr:52:54:00:20:02:57
2(eth2): addr:52:54:00:20:02:59
34(t-gre1): addr:fa:57:e2:0c:36:ea
35(vm1): addr:d2:90:bc:f6:84:2e
LOCAL(br0): addr:fa:5d:05:e0:bd:49
host1# ovs-ofctl dump-flows br0
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=202.317s, table=0, n_packets=6, n_bytes=252,
idle_age=11, priority=2,in_port=35 actions=output:34
cookie=0x0, duration=209.664s, table=0, n_packets=0, n_bytes=0,
idle_age=209, priority=2,in_port=34 actions=output:35
cookie=0x0, duration=2291.943s, table=0, n_packets=69, n_bytes=3186,
idle_age=22, priority=0 actions=NORMAL
vm1# ifconfig
eth0 Link encap:Ethernet HWaddr 52:54:00:AA:0A:7B
inet addr:10.102.0.10 Bcast:10.102.0.255 Mask:255.255.255.0
inet6 addr: fe80::5054:ff:feaa:a7b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:45 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2106 (2.0 KiB) TX bytes:650 (650.0 b)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 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:0 (0.0 b) TX bytes:0 (0.0 b)
vm1# ping 10.102.0.12
PING 10.102.0.12 (10.102.0.12) 56(84) bytes of data.
>From 10.102.0.10 icmp_seq=2 Destination Host Unreachable
>From 10.102.0.10 icmp_seq=3 Destination Host Unreachable
>From 10.102.0.10 icmp_seq=4 Destination Host Unreachable
>From 10.102.0.10 icmp_seq=6 Destination Host Unreachable
>From 10.102.0.10 icmp_seq=7 Destination Host Unreachable
host2# ovs-vsctl show
1313da2c-30b3-4241-a55d-6b846f2db386
Bridge "br0"
Port "eth0"
Interface "eth0"
Port "br0"
Interface "br0"
type: internal
Port "t-gre2"
Interface "t-gre2"
type: gre
options: {in_key=flow, out_key=flow,
remote_ip="172.16.40.40"}
ovs_version: "1.10.0"
host2# ovs-ofctl show br0 | grep addr
1(eth0): addr:52:54:00:20:82:24
129(t-gre2): addr:c2:91:4e:5f:59:78
131(vm2): addr:8e:8f:2b:a3:6c:42
LOCAL(br0): addr:1e:c0:a2:b7:b1:4d
host2# ovs-ofctl dump-flows br0
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=89.498s, table=0, n_packets=0, n_bytes=0,
idle_age=89, priority=2,in_port=131 actions=output:129
cookie=0x0, duration=98.709s, table=0, n_packets=0, n_bytes=0,
idle_age=98, priority=2,in_port=129 actions=output:131
cookie=0x0, duration=2161.026s, table=0, n_packets=81, n_bytes=12348,
idle_age=183, priority=0 actions=NORMAL
vm2# ifconfig
eth0 Link encap:Ethernet HWaddr 52:54:00:D2:60:4E
inet addr:10.102.0.12 Bcast:10.102.0.255 Mask:255.255.255.0
inet6 addr: fe80::5054:ff:fed2:604e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:510 (510.0 b) TX bytes:630 (630.0 b)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 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:0 (0.0 b) TX bytes:0 (0.0 b)
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