vm floating ip not reachable, but vm able to reach external network

asked 2015-06-02 02:56:12 -0500

gvijai gravatar image

Dear All,

I am facing a issue with Icehouse implementation under KVM,nested installation. I have one controller node and one compute node. earlier all was working fine , after three reboots I am unable to connect vm's via floating ips. but from the vm I am able to reach external network ie. internet without any issues.

I ran tcpdump on both controller and compute node. I am able to ping from vm to router private ip and external route ip. But not the reverse.

[root@ostack-controller ~(keystone_admin)]# ping -c 3 10.0.0.13
PING 10.0.0.13 (10.0.0.13) 56(84) bytes of data.
03:52:30.374007 IP 10.0.0.1 > 10.0.0.13: ICMP echo request, id 21403, seq 1, length 64
03:52:31.373247 IP 10.0.0.1 > 10.0.0.13: ICMP echo request, id 21403, seq 2, length 64
03:52:32.373338 IP 10.0.0.1 > 10.0.0.13: ICMP echo request, id 21403, seq 3, length 64
03:52:35.381192 ARP, Request who-has 10.0.0.13 tell 10.0.0.1, length 28
03:52:35.382585 ARP, Reply 10.0.0.13 is-at fa:16:3e:7b:8c:23 (oui Unknown), length 28

--- 10.0.0.13 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms



[root@ostack-compute ~(keystone_admin)]# tcpdump -i tapb358334e-52
tcpdump: WARNING: tapb358334e-52: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tapb358334e-52, link-type EN10MB (Ethernet), capture size 65535 bytes

03:52:34.770664 ARP, Request who-has 10.0.0.13 tell 10.0.0.1, length 28
03:52:34.771182 ARP, Reply 10.0.0.13 is-at fa:16:3e:7b:8c:23 (oui Unknown), length 28
^C
2 packets captured
2 packets received by filter
0 packets dropped by kernel

Please find all other details below.


[root@ostack-controller ~(keystone_admin)]# keystone-all --version
2014.1.1

[root@ostack-controller ~(keystone_admin)]# nova-manage service list Binary Host Zone Status State Updated_At nova-consoleauth ostack-controller internal enabled :-) 2015-06-02 07:08:05 nova-scheduler ostack-controller internal enabled :-) 2015-06-02 07:08:05 nova-conductor ostack-controller internal enabled :-) 2015-06-02 07:08:04 nova-cert ostack-controller internal enabled :-) 2015-06-02 07:08:05 nova-compute ostack-compute nova enabled :-) 2015-06-02 07:08:09

[root@ostack-controller ~(keystone_admin)]# neutron net-list +--------------------------------------+---------+-------------------------------------------------------+ | id | name | subnets | +--------------------------------------+---------+-------------------------------------------------------+ | eefa6013-de6a-4943-bc67-7b04c96f5c1e | Private | f06c26a7-8f82-4023-8fec-36a986d9c8d8 10.0.0.0/24 | | cb5bd4d6-c269-498e-9b85-abc4235775c2 | Public | a3f43fe6-1967-4f21-a4da-cb33a259bf31 192.168.122.0/24 | +--------------------------------------+---------+-------------------------------------------------------+

[root@ostack-controller ~(keystone_admin)]# nova list +--------------------------------------+--------+--------+------------+-------------+------------------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+--------+------------+-------------+------------------------------------+ | bbece42a-dc13-4234-9f78-3c7e5ea29128 | cirros | ACTIVE | - | Running | Private=10.0.0.13, 192.168.122.154 | +--------------------------------------+--------+--------+------------+-------------+------------------------------------+

[root@ostack-controller ~(keystone_admin)]# ip netns qrouter-913c4926-3e33-4226-ad75-fd02a13d3cb3 qdhcp-eefa6013-de6a-4943-bc67-7b04c96f5c1e [root@ostack-controller ~(keystone_admin)]# ip netns exec qrouter-913c4926-3e33-4226-ad75-fd02a13d3cb3 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: qr-abcdd7e0-36 ...

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