Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Supported by

Openstack neutron : accessing openstack managed servers from the network host

edited December 2018 in Miscellaneous

Hi all, I have a distributed openstack setup -- one controller and three compute instances. The "network node" is the same as the controller. I have a flat external network and VLAN provider network which has been assigned tag 775.

I have a router connecting the vlan network to the external network. All the plumbing works as expected. I can log into a openstack server and ping outside. Networks are isolated as expected and so forth.

On the controller/network node, I see a qrouter namespace that openstack created for the router and another one for DHCP.

I create a server on a public VLAN-enabled network. I need to reach the server from the controller. I tried some hacks by creating a veth pair and pushing one end to the qrouter namespace but that did not work.

I finally tried the following ugly hack (which worked):

ovs-vsctl show

# Look for the mapping that openstack is using

ovs-ofctl dump-flows br-int -O openflow13 | grep 775

# discover that tag 6 is used by openstack on my integration bridge.
# corresponding to vlan 775

# Create a veth pair so the root namespace can access the bridge.

ip link ip link add veth0 type veth peer name veth1

# put one end on the bridge.
# assign a tag of 6 so it can access the server.

ovs-vsctl add-port br-int veth1 tag=6

# Finally I can assign an address to veth0 and ping a host on
# the openstack managed vlan network

ifconfig veth0 10.0.40.39
After doing the steps above I am able to ping a server on my openstack managed network from my controller.

I had to do several manual steps to figure out the internal tag that openstack was using on the integration bridge. I did this by dumping flow rules on the integration bridge to see how the tags were being managed. I then did the steps outlined above. I think there must be an openstack (neutron) set of commands which I can use rather than having to go through this.

Seeking a better solution. I should not need to look at internal tags and figure out mappings etc. Is there an open stack command line base set of commands to achieve this?

Thanks

Comments

  • Hi,

    I think you'd be better of to ask in the openstack community for help. The problem you are having doesn't seem to be Opensesame-specific.

    Eduard

Sign In or Register to comment.

agen judi bola , sportbook, casino, togel, number game, singapore, tangkas, basket, slot, poker, dominoqq, agen bola. Semua permainan bisa dimainkan hanya dengan 1 ID. minimal deposit 50.000 ,- bonus cashback hingga 10% , diskon togel hingga 66% bisa bermain di android dan IOS kapanpun dan dimana pun. poker , bandarq , aduq, domino qq , dominobet. Semua permainan bisa dimainkan hanya dengan 1 ID. minimal deposit 10.000 ,- bonus turnover 0.5% dan bonus referral 20%. Bonus - bonus yang dihadirkan bisa terbilang cukup tinggi dan memuaskan, anda hanya perlu memasang pada situs yang memberikan bursa pasaran terbaik yaitu http://45.77.173.118/ Bola168. Situs penyedia segala jenis permainan poker online kini semakin banyak ditemukan di Internet, salah satunya TahunQQ merupakan situs Agen Judi Domino66 Dan BandarQ Terpercaya yang mampu memberikan banyak provit bagi bettornya. Permainan Yang Di Sediakan Dewi365 Juga sangat banyak Dan menarik dan Peluang untuk memenangkan Taruhan Judi online ini juga sangat mudah . Mainkan Segera Taruhan Sportbook anda bersama Agen Judi Bola Bersama Dewi365 Kemenangan Anda Berapa pun akan Terbayarkan. Tersedia 9 macam permainan seru yang bisa kamu mainkan hanya di dalam 1 ID saja. Permainan seru yang tersedia seperti Poker, Domino QQ Dan juga BandarQ Online. Semuanya tersedia lengkap hanya di ABGQQ. Situs ABGQQ sangat mudah dimenangkan, kamu juga akan mendapatkan mega bonus dan setiap pemain berhak mendapatkan cashback mingguan. ABGQQ juga telah diakui sebagai Bandar Domino Online yang menjamin sistem FAIR PLAY disetiap permainan yang bisa dimainkan dengan deposit minimal hanya Rp.25.000. DEWI365 adalah Bandar Judi Bola Terpercaya & resmi dan terpercaya di indonesia. Situs judi bola ini menyediakan fasilitas bagi anda untuk dapat bermain memainkan permainan judi bola. Didalam situs ini memiliki berbagai permainan taruhan bola terlengkap seperti Sbobet, yang membuat DEWI365 menjadi situs judi bola terbaik dan terpercaya di Indonesia. Tentunya sebagai situs yang bertugas sebagai Bandar Poker Online pastinya akan berusaha untuk menjaga semua informasi dan keamanan yang terdapat di POKERQQ13. Kotakqq adalah situs Judi Poker Online Terpercayayang menyediakan 9 jenis permainan sakong online, dominoqq, domino99, bandarq, bandar ceme, aduq, poker online, bandar poker, balak66, perang baccarat, dan capsa susun. Dengan minimal deposit withdraw 15.000 Anda sudah bisa memainkan semua permaina pkv games di situs kami. Jackpot besar,Win rate tinggi, Fair play, PKV Games