No TAP devices visible under br-ex bridge Neutron host [closed]

asked 2013-11-18 00:25:02 -0500

prathamesh_deshpande gravatar image

I am unable to see the TAP devices listed under br-ex bridge for ovs-vsctl show command. Packets are able to reach from the Instances launched(VMs) till the router, but are not able to access the Internet(ping/ssh). So, I am guessing the unavailability of Tap interface is the broken link and hence my issue. How to make it visible in the Bridge br-ex, I have added port eth2 to br-ex

I get the following error for neutron router-list

root@network:~# quantum router-list 401 Unauthorized

This server could not verify that you are authorized to access the document you requested. Either you supplied the wrong credentials (e.g., bad password), or your browser does not understand how to supply the credentials required.

Authentication required

root@network:~# ovs-vsctl show
    Bridge br-int
        Port "tap8625fd14-c0"
            tag: 2
            Interface "tap8625fd14-c0"
        Port "tapa441c428-0e"
            tag: 1
            Interface "tapa441c428-0e"
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "tap390e54c3-79"
            tag: 2
            Interface "tap390e54c3-79"
        Port "tap0acab251-91"
            tag: 1
            Interface "tap0acab251-91"
        Port br-int
            Interface br-int
                type: internal
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "eth2"
            Interface "eth2"
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-1"
            Interface "gre-1"
                type: gre
                options: {in_key=flow, out_key=flow, remote_ip=""}
    ovs_version: "1.4.2"

Also, I can ssh into Cirros from my local network. As per the screenshot, I can ping (which is the interface I added on the dashboard for the Router to the external network net2) from my Cirros machine. My external gateway is I need to ping from Cirros, but there is no route to host.

So, do I need to do a neutron router-gateway-set explicitly from the commandline or just adding an interface is okay?

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Closed for the following reason question is not relevant or outdated by rbowen
close date 2017-05-24 13:41:54.335473


Closing: Your question refers to a version of OpenStack which has been designated End Of Life. (See for details).

rbowen gravatar imagerbowen ( 2017-05-24 13:41:48 -0500 )edit