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Internet connection not working in Nova Network

asked 2013-07-15 06:07:24 -0500

arindamchoudhury gravatar image

Hi,

My scenario is: OpenStack is installed using packtack with Nova Network One controller with only one NIC with one IP One compute with also only one NIC with one IP Both machines are running Scientific Linux 6.4 with openstack kernel

nova-manage service list
Binary           Host                                 Zone             Status     State Updated_At
nova-cert        CONTROLLER                       internal         enabled    :-)   2013-07-15 10:52:07
nova-network     CONTROLLER                       internal         enabled    :-)   2013-07-15 10:52:07
nova-conductor   CONTROLLER                       internal         enabled    :-)   2013-07-15 10:52:07
nova-scheduler   CONTROLLER                       internal         enabled    :-)   2013-07-15 10:52:17
nova-consoleauth CONTROLLER                       internal         enabled    :-)   2013-07-15 10:52:07
nova-compute     COMPUTE                          nova             enabled    :-)   2013-07-15 10:52:16

Controller node:

route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.32.0    0.0.0.0         255.255.252.0   U     0      0        0 br100
PUBLIC_NETWORK  0.0.0.0         255.255.240.0   U     0      0        0 br100
0.0.0.0         PUBLIC_GW       0.0.0.0         UG    0      0        0 br100

Compute node:

route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.100.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0
192.168.200.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr1
PUBLIC_NETWORK  0.0.0.0         255.255.240.0   U     0      0        0 br100
0.0.0.0         PUBLIC_GW       0.0.0.0         UG    0      0        0 br100

Controller node iptables:

Chain INPUT (policy ACCEPT)
target     prot opt source               destination
LOG        all  --  anywhere             anywhere            LOG level warning
nova-network-INPUT  all  --  anywhere             anywhere
nova-api-INPUT  all  --  anywhere             anywhere
ACCEPT     tcp  --  anywhere             anywhere            multiport dports http /* 001 horizon incoming */
ACCEPT     tcp  --  anywhere             anywhere            multiport dports iscsi-target,8776 /* 001 cinder incoming */
ACCEPT     tcp  --  anywhere             anywhere            multiport dports armtechdaemon /* 001 glance incoming */
ACCEPT     tcp  --  anywhere             anywhere            multiport dports commplex-main,35357 /* 001 keystone incoming */
ACCEPT     udp  --  anywhere             anywhere            udp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere            multiport dports 6080 /* 001 novncproxy incoming */
ACCEPT     tcp  --  anywhere             anywhere            multiport dports 8773,8774,8775 /* 001 novaapi incoming */
ACCEPT     tcp  --  anywhere             anywhere            multiport dports amqp /* 001 qpid incoming */
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:domain
ACCEPT     udp  --  anywhere             anywhere            udp dpt:bootps
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:bootps
ACCEPT     tcp  --  anywhere             anywhere            multiport dports mysql /* 001 mysql incoming */
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     icmp --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:ssh
REJECT     all  --  anywhere             anywhere            reject-with icmp-host-prohibited
ACCEPT     tcp  --  PUBLIC_NET      anywhere            tcp dpt:webcache

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
nova-filter-top  all  --  anywhere             anywhere
nova-network-FORWARD  all  --  anywhere             anywhere
nova-api-FORWARD  all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             192.168.122.0/24    state RELATED,ESTABLISHED
ACCEPT     all  --  192.168.122.0/24     anywhere
ACCEPT     all  --  anywhere             192.168.32.0/22     state RELATED,ESTABLISHED
ACCEPT     all  --  192.168.32.0/22      anywhere
ACCEPT     all  --  anywhere             anywhere
LOG        all  --  anywhere             anywhere            LOG level warning ...
(more)
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answered 2013-07-23 04:40:43 -0500

Robert van Leeuwen gravatar image

Could very well be a MTU issue. Try to set the MTU in the virtual machine to 1454 See: https://bugs.launchpad.net/neutron/+bug/1075336

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Asked: 2013-07-15 06:07:24 -0500

Seen: 780 times

Last updated: Jul 23 '13