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Can ping guest VMs but not reachable external network

To: openstack@xxxxxxxxxxxxxxxxxxx
From: Sammy Fung <sammy@xxxxxxxxxxxx>
Date: Wed, 6 Mar 2013 14:12:42 +0800
Sender: sammy.icloud43@xxxxxxxxx
I tried to configure Folsom with Quantum with 2 systems, I can ping all
gust VMs and control/network node but not reachable external network and
metadata server.

What should I do or try next ?

Public IP: 10.10.0.0/24 GW: 10.10.0.1
Floating IP for allocation: 10.10.0.100-199

# ifconfig
br-ex     Link encap:Ethernet  HWaddr 90:b2:1c:1d:ba:f5
          inet addr:10.10.0.5  Bcast:10.10.0.255  Mask:255.255.255.0
          inet6 addr: **** Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1642 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:111375 (111.3 KB)  TX bytes:468 (468.0 B)

eth0      Link encap:Ethernet  HWaddr 90:b2:1c:1d:ba:f5
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:3889252 errors:0 dropped:9975 overruns:0 frame:0
          TX packets:405724 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:274693186 (274.6 MB)  TX bytes:57112020 (57.1 MB)
          Interrupt:35

eth2      Link encap:Ethernet  HWaddr 90:b2:1c:1d:ba:f7
          inet addr:10.43.0.5  Bcast:10.43.0.255  Mask:255.255.255.0
          inet6 addr: **** Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:468974866 errors:0 dropped:0 overruns:0 frame:0
          TX packets:333432150 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:480278132175 (480.2 GB)  TX bytes:194328821675 (194.3 GB)
          Interrupt:34

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:459327545 errors:0 dropped:0 overruns:0 frame:0
          TX packets:459327545 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:95368147225 (95.3 GB)  TX bytes:95368147225 (95.3 GB)

tapc4a527ec-ce Link encap:Ethernet  HWaddr fa:16:3e:ef:71:4a
          inet addr:10.10.0.100  Bcast:10.10.0.255  Mask:255.255.255.0
          inet6 addr: **** Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:349 errors:0 dropped:0 overruns:0 frame:0
          TX packets:273 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:55285 (55.2 KB)  TX bytes:39379 (39.3 KB)

virbr0    Link encap:Ethernet  HWaddr 72:98:a8:f8:ec:c5
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  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)