<div dir="ltr">hi all:<div><br></div><div style>I set up quantum without namespace support, now VMs can ping gateway(100.0.0.1) but I can not capture any packet at gateway interface, br-int or br-tun:</div><div style><br></div>
<div style><div>root@controller:/var/log/openvswitch# tcpdump -i qr-c5496165-c7 -nn</div><div>tcpdump: verbose output suppressed, use -v or -vv for full protocol decode</div><div>listening on qr-c5496165-c7, link-type EN10MB (Ethernet), capture size 65535 bytes</div>
<div>^C</div><div>0 packets captured</div><div>0 packets received by filter</div><div>0 packets dropped by kernel</div><div><br></div><div><div>root@controller:/var/log/openvswitch# tcpdump -i br-int -nn</div><div>tcpdump: WARNING: br-int: no IPv4 address assigned</div>
<div>tcpdump: verbose output suppressed, use -v or -vv for full protocol decode</div><div>listening on br-int, link-type EN10MB (Ethernet), capture size 65535 bytes</div><div>^C</div><div>0 packets captured</div><div>0 packets received by filter</div>
<div>0 packets dropped by kernel</div></div><div><br></div><div><div>root@controller:/var/log/openvswitch# tcpdump -i br-tun -nn</div><div>tcpdump: WARNING: br-tun: no IPv4 address assigned</div><div>tcpdump: verbose output suppressed, use -v or -vv for full protocol decode</div>
<div>listening on br-tun, link-type EN10MB (Ethernet), capture size 65535 bytes</div><div>^C</div><div>0 packets captured</div><div>0 packets received by filter</div><div>0 packets dropped by kernel</div></div></div><div style>
<br></div><div style><br></div><div style>When I ping the DHCP server, packets are captured at DHCP server interface, but not at br-int or br-tun:</div><div style><br></div><div style><div>root@controller:/var/log/openvswitch# tcpdump -i tap160480aa-84 -nn</div>
<div>tcpdump: verbose output suppressed, use -v or -vv for full protocol decode</div><div>listening on tap160480aa-84, link-type EN10MB (Ethernet), capture size 65535 bytes</div><div>09:41:58.922771 IP 100.0.0.4 > <a href="http://100.0.0.3">100.0.0.3</a>: ICMP echo request, id 62726, seq 26, length 64</div>
<div>09:41:58.922885 IP 100.0.0.3 > <a href="http://100.0.0.4">100.0.0.4</a>: ICMP echo reply, id 62726, seq 26, length 64</div></div><div style><br></div><div style><br></div><div style>It is strange, 1) why packet is captured at DHCP server interface, not at gateway interface, 2) why packet is not captured at br-int or br-tun(GRE packets are captured at eth2)?</div>
<div style><br></div><div style><div>root@controller:/var/log/openvswitch# tcpdump -i eth2 proto gre -nn</div><div>tcpdump: verbose output suppressed, use -v or -vv for full protocol decode</div><div>listening on eth2, link-type EN10MB (Ethernet), capture size 65535 bytes</div>
<div>09:50:06.430375 IP 30.0.0.11 > <a href="http://30.0.0.1">30.0.0.1</a>: GREv0, key=0x2, length 110: IP 100.0.0.4 > <a href="http://100.0.0.1">100.0.0.1</a>: ICMP echo request, id 64774, seq 2, length 64</div><div>
09:50:06.430452 IP 30.0.0.1 > <a href="http://30.0.0.11">30.0.0.11</a>: GREv0, key=0x2, length 110: IP 100.0.0.1 > <a href="http://100.0.0.4">100.0.0.4</a>: ICMP echo reply, id 64774, seq 2, length 64</div><div>09:50:07.430514 IP 30.0.0.11 > <a href="http://30.0.0.1">30.0.0.1</a>: GREv0, key=0x2, length 110: IP 100.0.0.4 > <a href="http://100.0.0.1">100.0.0.1</a>: ICMP echo request, id 64774, seq 3, length 64</div>
<div>09:50:07.430616 IP 30.0.0.1 > <a href="http://30.0.0.11">30.0.0.11</a>: GREv0, key=0x2, length 110: IP 100.0.0.1 > <a href="http://100.0.0.4">100.0.0.4</a>: ICMP echo reply, id 64774, seq 3, length 64</div></div>
<div style><br></div><div style><br></div><div style><br></div><div style><br></div><div style><br></div><div style><br></div><div style><br></div><div style><br></div><div style><div>ca3b3f14-7564-4a88-b0f2-417ccc6d60bf</div>
<div> Bridge br-tun</div><div> Port "gre-2"</div><div> Interface "gre-2"</div><div> type: gre</div><div> options: {in_key=flow, out_key=flow, remote_ip="30.0.0.11"}</div>
<div> Port patch-int</div><div> Interface patch-int</div><div> type: patch</div><div> options: {peer=patch-tun}</div><div> Port br-tun</div><div> Interface br-tun</div>
<div> type: internal</div><div> Bridge "virbr0"</div><div> Port "virbr0"</div><div> Interface "virbr0"</div><div> type: internal</div><div>
Bridge br-int</div>
<div> Controller "tcp:<a href="http://30.0.0.1:6633">30.0.0.1:6633</a>"</div><div> Port "qr-c5496165-c7"</div><div> tag: 3</div><div> Interface "qr-c5496165-c7"</div>
<div> type: internal</div><div> Port br-int</div><div> Interface br-int</div><div> type: internal</div><div> Port "tapaebb6140-31"</div><div> tag: 4095</div>
<div> Interface "tapaebb6140-31"</div><div> type: internal</div><div> Port "tap5b5891ac-94"</div><div> tag: 2</div><div> Interface "tap5b5891ac-94"</div>
<div> type: internal</div><div> Port "tap160480aa-84"</div><div> tag: 3</div><div> Interface "tap160480aa-84"</div><div> type: internal</div>
<div>
Port "qr-48c69382-4f"</div><div> tag: 2</div><div> Interface "qr-48c69382-4f"</div><div> type: internal</div><div> Port "tapf6040ba0-b5"</div>
<div> tag: 4095</div><div> Interface "tapf6040ba0-b5"</div><div> type: internal</div><div> Port patch-tun</div><div> Interface patch-tun</div><div> type: patch</div>
<div> options: {peer=patch-int}</div><div> Port "tap09a002af-66"</div><div> tag: 4095</div><div> Interface "tap09a002af-66"</div><div> type: internal</div>
<div> Port "tapddc3ce63-2b"</div><div> tag: 4095</div><div> Interface "tapddc3ce63-2b"</div><div> type: internal</div><div> Port "tap0ded1c0f-df"</div>
<div> tag: 1</div><div> Interface "tap0ded1c0f-df"</div><div> type: internal</div><div> Port "qr-9b9a3229-19"</div><div> tag: 4095</div><div> Interface "qr-9b9a3229-19"</div>
<div> type: internal</div><div> Port "qr-8af2e01f-bb"</div><div> tag: 4095</div><div> Interface "qr-8af2e01f-bb"</div><div> type: internal</div>
<div> Bridge br-ex</div><div> Port br-ex</div><div> Interface br-ex</div><div> type: internal</div><div> Port "qg-0eda5152-09"</div><div> Interface "qg-0eda5152-09"</div>
<div> type: internal</div><div> Port "eth0"</div><div> Interface "eth0"</div><div> ovs_version: "1.4.0+build0"</div><div><br></div><div><br></div><div><div>
root@controller:~# ifconfig </div><div>br-ex Link encap:Ethernet HWaddr e0:db:55:1f:99:b4 </div><div> inet addr:192.168.19.1 Bcast:192.168.19.255 Mask:255.255.255.0</div><div> inet6 addr: fe80::e2db:55ff:fe1f:99b4/64 Scope:Link</div>
<div> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div><div> RX packets:329437 errors:0 dropped:0 overruns:0 frame:0</div><div> TX packets:349843 errors:0 dropped:0 overruns:0 carrier:0</div>
<div> collisions:0 txqueuelen:0 </div><div> RX bytes:50084384 (50.0 MB) TX bytes:174803790 (174.8 MB)</div><div><br></div><div>br-int Link encap:Ethernet HWaddr e2:ed:9e:9b:69:42 </div><div> inet6 addr: fe80::e0ed:9eff:fe9b:6942/64 Scope:Link</div>
<div> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div><div> RX packets:1226 errors:0 dropped:0 overruns:0 frame:0</div><div> TX packets:6 errors:0 dropped:0 overruns:0 carrier:0</div><div>
collisions:0 txqueuelen:0 </div><div> RX bytes:225034 (225.0 KB) TX bytes:468 (468.0 B)</div><div><br></div><div>br-tun Link encap:Ethernet HWaddr 46:ca:bf:10:0e:45 </div><div> inet6 addr: fe80::44ca:bfff:fe10:e45/64 Scope:Link</div>
<div> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div><div> RX packets:2 errors:0 dropped:0 overruns:0 frame:0</div><div> TX packets:6 errors:0 dropped:0 overruns:0 carrier:0</div><div>
collisions:0 txqueuelen:0 </div>
<div> RX bytes:88 (88.0 B) TX bytes:468 (468.0 B)</div><div><br></div><div>eth0 Link encap:Ethernet HWaddr e0:db:55:1f:99:b4 </div><div> inet6 addr: fe80::e2db:55ff:fe1f:99b4/64 Scope:Link</div>
<div>
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div><div> RX packets:366810 errors:0 dropped:0 overruns:0 frame:0</div><div> TX packets:401198 errors:0 dropped:0 overruns:0 carrier:0</div>
<div>
collisions:0 txqueuelen:1000 </div><div> RX bytes:53802410 (53.8 MB) TX bytes:179619788 (179.6 MB)</div><div> Interrupt:35 </div><div><br></div><div>eth1 Link encap:Ethernet HWaddr e0:db:55:1f:99:b5 </div>
<div> inet addr:169.254.169.254 Bcast:0.0.0.0 Mask:255.255.255.255</div><div> inet6 addr: fe80::e2db:55ff:fe1f:99b5/64 Scope:Link</div><div> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div>
<div> RX packets:752581 errors:0 dropped:0 overruns:0 frame:0</div><div> TX packets:715623 errors:0 dropped:0 overruns:0 carrier:0</div><div> collisions:0 txqueuelen:1000 </div><div> RX bytes:186338905 (186.3 MB) TX bytes:254970197 (254.9 MB)</div>
<div> Interrupt:38 </div><div><br></div><div>eth2 Link encap:Ethernet HWaddr e0:db:55:1f:99:b6 </div><div> inet addr:30.0.0.1 Bcast:30.0.0.255 Mask:255.255.255.0</div><div> inet6 addr: fe80::e2db:55ff:fe1f:99b6/64 Scope:Link</div>
<div> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div><div> RX packets:86510 errors:0 dropped:0 overruns:0 frame:0</div><div> TX packets:40477 errors:0 dropped:0 overruns:0 carrier:0</div>
<div> collisions:0 txqueuelen:1000 </div><div> RX bytes:8169880 (8.1 MB) TX bytes:5679064 (5.6 MB)</div><div> Interrupt:34 </div><div><br></div><div>lo Link encap:Local Loopback </div>
<div>
inet addr:127.0.0.1 Mask:255.0.0.0</div><div> inet6 addr: ::1/128 Scope:Host</div><div> UP LOOPBACK RUNNING MTU:16436 Metric:1</div><div> RX packets:6563002 errors:0 dropped:0 overruns:0 frame:0</div>
<div> TX packets:6563002 errors:0 dropped:0 overruns:0 carrier:0</div><div> collisions:0 txqueuelen:0 </div><div> RX bytes:1316707664 (1.3 GB) TX bytes:1316707664 (1.3 GB)</div><div><br></div>
<div>
<b>qr-c5496165-c7 Link encap:Ethernet HWaddr fa:16:3e:79:09:ca </b></div><div><b> inet addr:100.0.0.1 Bcast:100.0.0.255 Mask:255.255.255.0</b></div><div><b> inet6 addr: fe80::f816:3eff:fe79:9ca/64 Scope:Link</b></div>
<div><b> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</b></div><div><b> RX packets:3755 errors:0 dropped:3147 overruns:0 frame:0</b></div><div><b> TX packets:6 errors:0 dropped:0 overruns:0 carrier:0</b></div>
<div><b> collisions:0 txqueuelen:0 </b></div><div><b> RX bytes:344043 (344.0 KB) TX bytes:468 (468.0 B)</b></div><div><br></div><div>tap09a002af-66 Link encap:Ethernet HWaddr fa:16:3e:9e:11:e0 </div>
<div>
inet addr:192.168.19.129 Bcast:192.168.19.255 Mask:255.255.255.128</div><div> inet6 addr: fe80::f816:3eff:fe9e:11e0/64 Scope:Link</div><div> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div>
<div> RX packets:3632 errors:0 dropped:3443 overruns:0 frame:0</div><div> TX packets:9 errors:0 dropped:0 overruns:0 carrier:0</div><div> collisions:0 txqueuelen:0 </div><div> RX bytes:243129 (243.1 KB) TX bytes:594 (594.0 B)</div>
<div><br></div><div>tap0ded1c0f-df Link encap:Ethernet HWaddr fa:16:3e:0a:08:7a </div><div> inet addr:192.168.19.130 Bcast:192.168.19.255 Mask:255.255.255.0</div><div> inet6 addr: fe80::f816:3eff:fe0a:87a/64 Scope:Link</div>
<div> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div><div> RX packets:3346 errors:0 dropped:3149 overruns:0 frame:0</div><div> TX packets:6 errors:0 dropped:0 overruns:0 carrier:0</div>
<div> collisions:0 txqueuelen:0 </div><div> RX bytes:225063 (225.0 KB) TX bytes:468 (468.0 B)</div><div><br></div><div><b>tap160480aa-84 Link encap:Ethernet HWaddr fa:16:3e:54:77:83 </b></div><div><b> inet addr:100.0.0.3 Bcast:100.0.0.255 Mask:255.255.255.0</b></div>
<div><b> inet6 addr: fe80::f816:3eff:fe54:7783/64 Scope:Link</b></div><div><b> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</b></div><div><b> RX packets:10572 errors:0 dropped:3453 overruns:0 frame:0</b></div>
<div><b> TX packets:6105 errors:0 dropped:0 overruns:0 carrier:0</b></div><div><b> collisions:0 txqueuelen:0 </b></div><div><b> RX bytes:1125984 (1.1 MB) TX bytes:697815 (697.8 KB)</b></div><div>
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