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[Daniels Cai <danxcai@xxxxxxxxx>]

Is your physical nic whiched used for vm communication can ping each other?
Check your GRE tunnel if you are in GRE mode or check your vlan
setting in  physical switch if in vlan mode


Daniels Cai

http://dnscai.com

在 2013-5-7，14:56，zengshan2008 <zengshan2008@xxxxxxxxx> 写道：

> Hi,
> I've installed openstack using quantum by the guide
> https://github.com/mseknibilel/OpenStack-Folsom-Install-guide/blob/master/OpenStack_Folsom_Install_Guide_WebVersion.rst
> everything works fine, but I can't ping vm from the outside world, neither from the network node.The following is some of my configration.
> 1) root@networknode:/etc# ip netns
> qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189
> qdhcp-e58739ff-16dc-4289-8110-242f7818d314
> 2) qrouter and qdhcp server is up
> root@networknode:/etc# ip netns exec qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189 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:16436  Metric:1
>          RX packets:85 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:85 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:9224 (9.2 KB)  TX bytes:9224 (9.2 KB)
>
> qg-daf2c037-cc Link encap:Ethernet  HWaddr fa:16:3e:ea:f6:c3
>          inet addr:192.168.23.102  Bcast:192.168.23.255  Mask:255.255.255.0
>          inet6 addr: 2401:de00::f816:3eff:feea:f6c3/64 Scope:Global
>          inet6 addr: fe80::f816:3eff:feea:f6c3/64 Scope:Link
>          inet6 addr: 2401:de00::6066:acc0:66e3:7434/64 Scope:Global
>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>          RX packets:5392 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:406572 (406.5 KB)  TX bytes:846 (846.0 B)
>
> qr-d9cb6d6d-5e Link encap:Ethernet  HWaddr fa:16:3e:6d:5a:3a
>          inet addr:202.122.38.1  Bcast:202.122.38.255  Mask:255.255.255.0
>          inet6 addr: fe80::f816:3eff:fe6d:5a3a/64 Scope:Link
>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>          RX packets:24 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:108 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:2184 (2.1 KB)  TX bytes:5928 (5.9 KB)
>
> root@networknode:/etc# ip netns exec qdhcp-e58739ff-16dc-4289-8110-242f7818d314 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:16436  Metric:1
>          RX packets:10 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:840 (840.0 B)  TX bytes:840 (840.0 B)
>
> tape10a4f07-60 Link encap:Ethernet  HWaddr fa:16:3e:db:8f:23
>          inet addr:202.122.38.14  Bcast:202.122.38.255  Mask:255.255.255.0
>          inet6 addr: fe80::f816:3eff:fedb:8f23/64 Scope:Link
>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>          RX packets:106 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:5760 (5.7 KB)  TX bytes:2652 (2.6 KB)
> 3) qrouter can ping the dhcp server from the network node
> root@networknode:/etc# ip netns exec qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189 ping 202.122.38.14
> PING 202.122.38.14 (202.122.38.14) 56(84) bytes of data.
> 64 bytes from 202.122.38.14: icmp_req=1 ttl=64 time=0.325 ms
> 64 bytes from 202.122.38.14: icmp_req=2 ttl=64 time=0.023 ms
> 64 bytes from 202.122.38.14: icmp_req=3 ttl=64 time=0.024 ms
> ^C
> --- 202.122.38.14 ping statistics ---
> 3 packets transmitted, 3 received, 0% packet loss, time 1998ms
> rtt min/avg/max/mdev = 0.023/0.124/0.325/0.142 ms
> 4) virtual machine is up
> quantum floatingip-list
> +--------------------------------------+------------------+---------------------+--------------------------------------+
> | id                                   | fixed_ip_address | floating_ip_address | port_id                              |
> +--------------------------------------+------------------+---------------------+--------------------------------------+
> | 88398dd1-7256-49c7-b1ad-719903125501 | 202.122.38.15    | 192.168.23.103      | ce7c1eff-afcb-4908-b399-0e6e07d2791e |
> +--------------------------------------+------------------+---------------------+--------------------------------------+
>       5) virtual machine eth0 is up
>
>         6)ssh or ping to vm is failed
> root@networknode:/etc# ip netns exec qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189 ping 202.122.38.15
> PING 202.122.38.15 (202.122.38.15) 56(84) bytes of data.
> From 202.122.38.1 icmp_seq=1 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=2 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=3 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=4 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=5 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=6 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=7 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=8 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=9 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=10 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=11 Destination Host Unreachable
> From 202.122.38.1 icmp_seq=12 Destination Host Unreachable
> ^C
> --- 202.122.38.15 ping statistics ---
> 14 packets transmitted, 0 received, +12 errors, 100% packet loss, time 12999ms
> pipe 4
> root@networknode:/etc# ^C
> root@networknode:/etc# ^C
> root@networknode:/etc# ip netns exec qrouter-8f5f3c17-a00e-4382-a403-181dfbb9d189 ssh root@202.122.38.15
> ssh: connect to host 202.122.38.15 port 22: No route to host
>
> 2013-05-07
>
>
>
> zengshan2008
> <mime-attachment>
> <Catch(05-07-13-09-37)(1).bmp>