First of all, to have and idea about my network topology :
http://hpics.li/1b8668e (Network Topology)
and the gateway of my external network is : 192.168.122.1
When I capture in the router namespace and I ping for the instance the gateway of the external network by using :
ip netns exec <router_namespace> tcpdump -i any icmp -nn
I got :
10:05:07.805982 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, seq 0, length 64
10:05:08.808850 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 1, length 64
10:05:09.810047 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 2, length 64
10:05:10.809102 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:10.809138 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:10.809147 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:10.810718 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 3, length 64
10:05:11.811284 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 4, length 64
10:05:12.812171 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 5, length 64
10:05:13.808613 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:13.808633 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:13.808637 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:13.812479 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 6, length 64
10:05:14.814060 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 7, length 64
10:05:15.815577 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 8, length 64
10:05:16.808625 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:16.808672 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:16.808676 IP 192.168.122.200 > 192.168.0.10: ICMP host 192.168.122.1 unrea chable, length 92
10:05:16.820334 IP 192.168.0.10 > 192.168.122.1: ICMP echo request, id 24321, se q 9, length 64
10:05:19 ...
(more)
Have you tried pinging your instance from the router namespace? Or can your instance ping router private ip and public ip?
That's the problem, i could get the console on horizon to work, so basicly i could not do anything from the instance itself ... could u please tell me how to ping the instance from the router namespace as u said ? but when i used tracepath the floating ip of the instance it works Thank u
Check your router id from horizon. Then in Controller node, get the router namespace using
ip netns | grep routerwhich will have the same id as your router. Then you can try pinging your instance from router namespace usingip netns exec <router_namespace> ping <instance ip>i m able to ping in instance from the router, but from the instance i cannot ping the external network, i think this is where the problem came from, u have an idea ? thank you
Can you capture in the router namespace using
ip netns exec <router_namespace> tcpdump -i any icmp -nnto check if you ping from instance, whether the packet is forwarded by router or not and if there is any reply from the destination coming to the router or not