[Rdo-list] Fwd: [Neutron] router can't ping external gateway

ICHIBA Sara ichi.sara at gmail.com
Tue May 19 12:15:06 UTC 2015 

[root at localhost ~(keystone_admin)]# ip netns exec
qrouter-85fa9459-503d-4996-86f3-6042604fed74 ip n | grep '192.168.5.1 '
192.168.5.1 dev qg-e1b584b4-db lladdr 00:23:48:9e:85:7c STALE





2015-05-19 14:12 GMT+02:00 Marius Cornea <mcornea at redhat.com>:

> Is there an ARP entry for 192.168.5.1 ?
>
> ip n | grep '192.168.5.1 ' in the router namespace
>
>
>
> ----- Original Message -----
> > From: "ICHIBA Sara" <ichi.sara at gmail.com>
> > To: rdo-list at redhat.com
> > Sent: Tuesday, May 19, 2015 1:42:11 PM
> > Subject: [Rdo-list] Fwd:  [Neutron] router can't ping external gateway
> >
> >
> > ---------- Forwarded message ----------
> > From: ICHIBA Sara < ichi.sara at gmail.com >
> > Date: 2015-05-19 13:41 GMT+02:00
> > Subject: Re: [Rdo-list] [Neutron] router can't ping external gateway
> > To: Marius Cornea < mcornea at redhat.com >
> >
> >
> > The forged transmissions on the vswitch are accepted. What's next?
> >
> > 2015-05-19 13:29 GMT+02:00 Marius Cornea < mcornea at redhat.com > :
> >
> >
> > Oh, ESXi...I remember that the vswitch had some security features in
> place.
> > You can check those and I think the one that you're looking for is called
> > forged retransmits.
> >
> > Thanks,
> > Marius
> >
> > ----- Original Message -----
> > > From: "ICHIBA Sara" < ichi.sara at gmail.com >
> > > To: "Marius Cornea" < mcornea at redhat.com >
> > > Cc: rdo-list at redhat.com
> > > Sent: Tuesday, May 19, 2015 1:17:20 PM
> > > Subject: Re: [Rdo-list] [Neutron] router can't ping external gateway
> > >
> > > the ICMP requests arrives to the eth0 interface
> > > [root at localhost ~]# tcpdump -i eth0 icmp
> > > tcpdump: WARNING: eth0: no IPv4 address assigned
> > > tcpdump: verbose output suppressed, use -v or -vv for full protocol
> decode
> > > listening on eth0, link-type EN10MB (Ethernet), capture size 65535
> bytes
> > > 13:14:13.205573 IP 192.168.5.70 > 192.168.5.1 : ICMP echo request, id
> > > 31055,
> > > seq 1, length 64
> > > 13:14:14.205303 IP 192.168.5.70 > 192.168.5.1 : ICMP echo request, id
> > > 31055,
> > > seq 2, length 64
> > > 13:14:15.205391 IP 192.168.5.70 > 192.168.5.1 : ICMP echo request, id
> > > 31055,
> > > seq 3, length 64
> > > 13:14:16.205397 IP 192.168.5.70 > 192.168.5.1 : ICMP echo request, id
> > > 31055,
> > > seq 4, length 64
> > > 13:14:17.205408 IP 192.168.5.70 > 192.168.5.1 : ICMP echo request, id
> > > 31055,
> > > seq 5, length 64
> > > 13:14:18.205412 IP 192.168.5.70 > 192.168.5.1 : ICMP echo request, id
> > > 31055,
> > > seq 6, length 64
> > > 13:14:19.205392 IP 192.168.5.70 > 192.168.5.1 : ICMP echo request, id
> > > 31055,
> > > seq 7, length 64
> > > 13:14:20.205357 IP 192.168.5.70 > 192.168.5.1 : ICMP echo request, id
> > > 31055,
> > > seq 8, length 64
> > > 13:14:33.060267
> > >
> > >
> > > what should I do next?
> > >
> > > P.S: My compute and controller hosts are ESXi VMs and I can ssh to
> both of
> > > them without a problem.
> > >
> > > 2015-05-19 13:00 GMT+02:00 Marius Cornea < mcornea at redhat.com >:
> > >
> > > > Also, I'm seeing that you have 2 default routes on your host. I'm not
> > > > sure
> > > > it affects the setup but try keeping only one: e.g. 'ip route del
> default
> > > > via 192.168.4.1' to delete the eth1 one.
> > > >
> > > > ======[root at localhost ~(keystone_admin)]# ip r
> > > > default via 192.168.5.1 dev br-ex
> > > > default via 192.168.4.1 dev eth1
> > > >
> > > > ----- Original Message -----
> > > > > From: "Marius Cornea" < mcornea at redhat.com >
> > > > > To: "ICHIBA Sara" < ichi.sara at gmail.com >
> > > > > Cc: rdo-list at redhat.com
> > > > > Sent: Tuesday, May 19, 2015 12:50:45 PM
> > > > > Subject: Re: [Rdo-list] [Neutron] router can't ping external
> gateway
> > > > >
> > > > > Hi,
> > > > >
> > > > > Try to see if any of the ICMP requests leave the eth0 interface
> like
> > > > 'tcpdump
> > > > > -i eth0 icmp' while pinging 192.168.5.1 from the router namespace.
> > > > >
> > > > > Thanks,
> > > > > Marius
> > > > >
> > > > > ----- Original Message -----
> > > > > > From: "ICHIBA Sara" < ichi.sara at gmail.com >
> > > > > > To: "Boris Derzhavets" < bderzhavets at hotmail.com >,
> > > > > > rdo-list at redhat.com
> > > > > > Sent: Tuesday, May 19, 2015 12:12:30 PM
> > > > > > Subject: Re: [Rdo-list] [Neutron] router can't ping external
> gateway
> > > > > >
> > > > > > ====updates
> > > > > >
> > > > > > I have deleted my networks, rebooted my machines and configured
> an
> > > > other
> > > > > > network. Now I can see the qr bridge mapped to the router but
> still
> > > > can't
> > > > > > ping the external gateway:
> > > > > >
> > > > > > ====[root at localhost ~(keystone_admin)]# ip netns exec
> > > > > > qrouter-85fa9459-503d-4996-86f3-6042604fed74 ip r
> > > > > > default via 192.168.5.1 dev qg-e1b584b4-db
> > > > > > 10.0.0.0/24 dev qr-7b330e0e-5c proto kernel scope link src
> 10.0.0.1
> > > > > > 192.168.5.0/24 dev qg-e1b584b4-db proto kernel scope link src
> > > > 192.168.5.70
> > > > > >
> > > > > > ====[root at localhost ~(keystone_admin)]# ip netns exec
> > > > > > qrouter-85fa9459-503d-4996-86f3-6042604fed74 ip a
> > > > > > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state
> UNKNOWN
> > > > > > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> > > > > > inet 127.0.0.1/8 scope host lo
> > > > > > valid_lft forever preferred_lft forever
> > > > > > inet6 ::1/128 scope host
> > > > > > valid_lft forever preferred_lft forever
> > > > > > 12: qg-e1b584b4-db: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
> qdisc
> > > > > > noqueue
> > > > > > state UNKNOWN
> > > > > > link/ether fa:16:3e:68:83:f8 brd ff:ff:ff:ff:ff:ff
> > > > > > inet 192.168.5.70/24 brd 192.168.5.255 scope global
> qg-e1b584b4-db
> > > > > > valid_lft forever preferred_lft forever
> > > > > > inet 192.168.5.73/32 brd 192.168.5.73 scope global
> qg-e1b584b4-db
> > > > > > valid_lft forever preferred_lft forever
> > > > > > inet6 fe80::f816:3eff:fe68:83f8/64 scope link
> > > > > > valid_lft forever preferred_lft forever
> > > > > > 13: qr-7b330e0e-5c: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
> qdisc
> > > > > > noqueue
> > > > > > state UNKNOWN
> > > > > > link/ether fa:16:3e:92:9c:90 brd ff:ff:ff:ff:ff:ff
> > > > > > inet 10.0.0.1/24 brd 10.0.0.255 scope global qr-7b330e0e-5c
> > > > > > valid_lft forever preferred_lft forever
> > > > > > inet6 fe80::f816:3eff:fe92:9c90/64 scope link
> > > > > > valid_lft forever preferred_lft forever
> > > > > >
> > > > > >
> > > > > > =====[root at localhost ~(keystone_admin)]# ip netns exec
> > > > > > qrouter-85fa9459-503d-4996-86f3-6042604fed74 ping 192.168.5.1
> > > > > > PING 192.168.5.1 (192.168.5.1) 56(84) bytes of data.
> > > > > > From 192.168.5.70 icmp_seq=10 Destination Host Unreachable
> > > > > > From 192.168.5.70 icmp_seq=11 Destination Host Unreachable
> > > > > > From 192.168.5.70 icmp_seq=12 Destination Host Unreachable
> > > > > > From 192.168.5.70 icmp_seq=13 Destination Host Unreachable
> > > > > > From 192.168.5.70 icmp_seq=14 Destination Host Unreachable
> > > > > > From 192.168.5.70 icmp_seq=15 Destination Host Unreachable
> > > > > > From 192.168.5.70 icmp_seq=16 Destination Host Unreachable
> > > > > > From 192.168.5.70 icmp_seq=17 Destination Host Unreachable
> > > > > >
> > > > > >
> > > > > > =====[root at localhost ~(keystone_admin)]# ovs-vsctl show
> > > > > > 19de58db-509d-4de8-bd88-9222019b13f1
> > > > > > Bridge br-int
> > > > > > fail_mode: secure
> > > > > > Port "tap2decc1bc-bf"
> > > > > > tag: 2
> > > > > > Interface "tap2decc1bc-bf"
> > > > > > type: internal
> > > > > > Port br-int
> > > > > > Interface br-int
> > > > > > type: internal
> > > > > > Port patch-tun
> > > > > > Interface patch-tun
> > > > > > type: patch
> > > > > > options: {peer=patch-int}
> > > > > > Port "qr-7b330e0e-5c"
> > > > > > tag: 2
> > > > > > Interface "qr-7b330e0e-5c"
> > > > > > type: internal
> > > > > > Port "qvo164afbd4-0c"
> > > > > > tag: 2
> > > > > > Interface "qvo164afbd4-0c"
> > > > > > Bridge br-ex
> > > > > > Port "eth0"
> > > > > > Interface "eth0"
> > > > > > Port br-ex
> > > > > > Interface br-ex
> > > > > > type: internal
> > > > > > Port "qg-e1b584b4-db"
> > > > > > Interface "qg-e1b584b4-db"
> > > > > > type: internal
> > > > > > Bridge br-tun
> > > > > > Port br-tun
> > > > > > Interface br-tun
> > > > > > type: internal
> > > > > > Port "vxlan-c0a80520"
> > > > > > Interface "vxlan-c0a80520"
> > > > > > type: vxlan
> > > > > > options: {df_default="true", in_key=flow,
> local_ip="192.168.5.33",
> > > > > > out_key=flow, remote_ip="192.168.5.32"}
> > > > > > Port patch-int
> > > > > > Interface patch-int
> > > > > > type: patch
> > > > > > options: {peer=patch-tun}
> > > > > > ovs_version: "2.3.1"
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > 2015-05-19 11:58 GMT+02:00 ICHIBA Sara < ichi.sara at gmail.com > :
> > > > > >
> > > > > >
> > > > > >
> > > > > > can you show me your plugin.ini file? /etc/neutron/plugin.ini
> and the
> > > > other
> > > > > > file /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini
> > > > > >
> > > > > >
> > > > > > 2015-05-19 10:47 GMT+02:00 Boris Derzhavets <
> bderzhavets at hotmail.com
> > > > > :
> > > > > >
> > > > > >
> > > > > >
> > > > > > There is one thing , which I clearly see . It is
> qrouter-namespace
> > > > > > misconfiguration. There is no qr-xxxxx bridge attached to br-int
> > > > > > Picture , in general, should look like this
> > > > > >
> > > > > > ubuntu at ubuntu-System:~$ sudo ip netns exec
> > > > > > qrouter-6cb93ddd-2637-449d-8b10-7c07da49ee8c route -n
> > > > > >
> > > > > > Kernel IP routing table
> > > > > > Destination Gateway Genmask Flags Metric Ref Use Iface
> > > > > > 0.0.0.0 192.168.12.15 0.0.0.0 UG 0 0 0 qg-a753a8f5-c8
> > > > > > 10.254.1.0 0.0.0.0 255.255.255.0 U 0 0 0 qr-393d9f71-53
> > > > > > 192.168.12.0 0.0.0.0 255.255.255.0 U 0 0 0 qg-a753a8f5-c8
> > > > > >
> > > > > > ubuntu at ubuntu-System:~$ sudo ip netns exec
> > > > > > qrouter-6cb93ddd-2637-449d-8b10-7c07da49ee8c ifconfig
> > > > > > 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:65536 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)
> > > > > >
> > > > > > qg-a753a8f5-c8 Link encap:Ethernet HWaddr fa:16:3e:a2:11:b4
> > > > > > inet addr:192.168.12.150 Bcast:192.168.12.255 Mask:255.255.255.0
> > > > > > inet6 addr: fe80::f816:3eff:fea2:11b4/64 Scope:Link
> > > > > > UP BROADCAST RUNNING MTU:1500 Metric:1
> > > > > > RX packets:24504 errors:0 dropped:0 overruns:0 frame:0
> > > > > > TX packets:17367 errors:0 dropped:0 overruns:0 carrier:0
> > > > > > collisions:0 txqueuelen:0
> > > > > > RX bytes:24328699 (24.3 MB) TX bytes:1443691 (1.4 MB)
> > > > > >
> > > > > > qr-393d9f71-53 Link encap:Ethernet HWaddr fa:16:3e:9e:ec:01
> > > > > > inet addr:10.254.1.1 Bcast:10.254.1.255 Mask:255.255.255.0
> > > > > > inet6 addr: fe80::f816:3eff:fe9e:ec01/64 Scope:Link
> > > > > > UP BROADCAST RUNNING MTU:1500 Metric:1
> > > > > > RX packets:22487 errors:0 dropped:5 overruns:0 frame:0
> > > > > > TX packets:24736 errors:0 dropped:0 overruns:0 carrier:0
> > > > > > collisions:0 txqueuelen:0
> > > > > > RX bytes:2379287 (2.3 MB) TX bytes:24338711 (24.3 MB)
> > > > > >
> > > > > > I would also advise you to post a question also on
> ask.openstack.org
> > > > > >
> > > > > > Boris.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Date: Tue, 19 May 2015 09:48:58 +0200
> > > > > > From: ichi.sara at gmail.com
> > > > > > To: rdo-list at redhat.com
> > > > > > Subject: [Rdo-list] [Neutron] router can't ping external gateway
> > > > > >
> > > > > >
> > > > > > Hey people,
> > > > > > I have an issue with my networking. I connected my openstack to
> an
> > > > external
> > > > > > network I did all the changes required. But still my router can't
> > > > reach the
> > > > > > external gateway.
> > > > > >
> > > > > > =====ifcfg-br-ex
> > > > > > DEVICE=br-ex
> > > > > > DEVICETYPE=ovs
> > > > > > TYPE=OVSBridge
> > > > > > BOOTPROTO=static
> > > > > > IPADDR=192.168.5.33
> > > > > > NETMASK=255.255.255.0
> > > > > > ONBOOT=yes
> > > > > > GATEWAY=192.168.5.1
> > > > > > DNS1=8.8.8.8
> > > > > > DNS2=192.168.5.1
> > > > > >
> > > > > >
> > > > > > ====ifcfg-eth0
> > > > > > DEVICE=eth0
> > > > > > HWADDR=00:0c:29:a2:b1:b9
> > > > > > ONBOOT=yes
> > > > > > TYPE=OVSPort
> > > > > > NM_CONTROLLED=yes
> > > > > > DEVICETYPE=ovs
> > > > > > OVS_BRIDGE=br-ex
> > > > > >
> > > > > > ======[root at localhost ~(keystone_admin)]# ovs-vsctl show
> > > > > > 19de58db-509d-4de8-bd88-9222019b13f1
> > > > > > Bridge br-int
> > > > > > fail_mode: secure
> > > > > > Port "tap8652132e-b8"
> > > > > > tag: 1
> > > > > > Interface "tap8652132e-b8"
> > > > > > type: internal
> > > > > > Port br-int
> > > > > > Interface br-int
> > > > > > type: internal
> > > > > > Port patch-tun
> > > > > > Interface patch-tun
> > > > > > type: patch
> > > > > > options: {peer=patch-int}
> > > > > > Bridge br-ex
> > > > > > Port "qg-5f8ebe30-40"
> > > > > > Interface "qg-5f8ebe30-40"
> > > > > > type: internal
> > > > > > Port "eth0"
> > > > > > Interface "eth0"
> > > > > > Port br-ex
> > > > > > Interface br-ex
> > > > > > type: internal
> > > > > > Bridge br-tun
> > > > > > Port "vxlan-c0a80520"
> > > > > > Interface "vxlan-c0a80520"
> > > > > > type: vxlan
> > > > > > options: {df_default="true", in_key=flow,
> local_ip="192.168.5.33",
> > > > > > out_key=flow, remote_ip="192.168.5.32"}
> > > > > > Port br-tun
> > > > > > Interface br-tun
> > > > > > type: internal
> > > > > > Port patch-int
> > > > > > Interface patch-int
> > > > > > type: patch
> > > > > > options: {peer=patch-tun}
> > > > > > ovs_version: "2.3.1"
> > > > > >
> > > > > > =====[root at localhost ~(keystone_admin)]# ping 192.168.5.1
> > > > > > PING 192.168.5.1 (192.168.5.1) 56(84) bytes of data.
> > > > > > 64 bytes from 192.168.5.1 : icmp_seq=1 ttl=64 time=1.76 ms
> > > > > > 64 bytes from 192.168.5.1 : icmp_seq=2 ttl=64 time=1.88 ms
> > > > > > 64 bytes from 192.168.5.1 : icmp_seq=3 ttl=64 time=1.45 ms
> > > > > > ^C
> > > > > > --- 192.168.5.1 ping statistics ---
> > > > > > 3 packets transmitted, 3 received, 0% packet loss, time 2002ms
> > > > > > rtt min/avg/max/mdev = 1.452/1.699/1.880/0.187 ms
> > > > > > [root at localhost ~(keystone_admin)]#
> > > > > >
> > > > > > ======[root at localhost ~(keystone_admin)]# ip netns exec
> > > > > > qrouter-85fa9459-503d-4996-86f3-6042604fed74 ip a
> > > > > > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state
> UNKNOWN
> > > > > > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> > > > > > inet 127.0.0.1/8 scope host lo
> > > > > > valid_lft forever preferred_lft forever
> > > > > > inet6 ::1/128 scope host
> > > > > > valid_lft forever preferred_lft forever
> > > > > > 14: qg-5f8ebe30-40: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
> qdisc
> > > > > > noqueue
> > > > > > state UNKNOWN
> > > > > > link/ether fa:16:3e:c2:1b:5e brd ff:ff:ff:ff:ff:ff
> > > > > > inet 192.168.5.70/24 brd 192.168.5.255 scope global
> qg-5f8ebe30-40
> > > > > > valid_lft forever preferred_lft forever
> > > > > > inet6 fe80::f816:3eff:fec2:1b5e/64 scope link
> > > > > > valid_lft forever preferred_lft forever
> > > > > > [root at localhost ~(keystone_admin)]#
> > > > > >
> > > > > >
> > > > > > ======[root at localhost ~(keystone_admin)]# ip r
> > > > > > default via 192.168.5.1 dev br-ex
> > > > > > default via 192.168.4.1 dev eth1
> > > > > > 169.254.0.0/16 dev eth0 scope link metric 1002
> > > > > > 169.254.0.0/16 dev eth1 scope link metric 1003
> > > > > > 169.254.0.0/16 dev br-ex scope link metric 1005
> > > > > > 192.168.4.0/24 dev eth1 proto kernel scope link src 192.168.4.14
> > > > > > 192.168.5.0/24 dev br-ex proto kernel scope link src
> 192.168.5.33
> > > > > > [root at localhost ~(keystone_admin)]#
> > > > > >
> > > > > >
> > > > > > ======[root at localhost ~(keystone_admin)]# ip netns exec
> > > > > > qrouter-85fa9459-503d-4996-86f3-6042604fed74 ip r
> > > > > > default via 192.168.5.1 dev qg-5f8ebe30-40
> > > > > > 192.168.5.0/24 dev qg-5f8ebe30-40 proto kernel scope link src
> > > > 192.168.5.70
> > > > > > [root at localhost ~(keystone_admin)]#
> > > > > >
> > > > > >
> > > > > > ======[root at localhost ~(keystone_admin)]# ip netns exec
> > > > > > qrouter-85fa9459-503d-4996-86f3-6042604fed74 ping 192.168.5.1
> > > > > > PING 192.168.5.1 (192.168.5.1) 56(84) bytes of data.
> > > > > > ^C
> > > > > > --- 192.168.5.1 ping statistics ---
> > > > > > 5 packets transmitted, 0 received, 100% packet loss, time 3999ms
> > > > > >
> > > > > > any hints??
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > _______________________________________________ Rdo-list mailing
> list
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> > > > > >
> > > > > >
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