I installed OpenStack Queens on Ubuntu. I created a virtual router to interconnect Private to external LAN. I am facing connectivity problems and I want to check rules in the router.
Where I can find these rules. Thanks for any help.
Openstack for every network device (router, dhcp agent) creates and net namespace, so as correct you find the ip netns returns the net namespaces, so with ip netns exec you can run commands that not know what net namespace mean, or you can use other utilities that can bind directly to linux net namespaces. I preface to run :
ip netns exec <net namespace> bash
and then i start to work in the enviroment as o was without net namespaces.
ip netns exec qrouter-xxxx bash
iptables -xnvL
will show all the rules but nat
iptables -xnvL -t nat
will show all including the NAT.
I found how:
run this command :
You can run a command inside a network namespace using the ip netns exec command. For example, to see the interface configuration inside the DHCP server:
Run a shell ip netns exec qrouter-xyz /bin/bash, then have fun listing netfilter rules, routing table, source routing ... See https://assafmuller.com/2015/04/15/di..., old but still useful.
Asked: 2018-07-06 06:03:42 -0600
Seen: 638 times
Last updated: Jul 09 '18
