The vm in external shared network has no related flow created in br-int

[Jianyong Chen]

Hi,

I try to boot a vm whose network is a external shared network, but it cannot get IP address. And even I configure a static IP for it, it failed to ping the other IP address in the same network.
By the debug, I found that there is no related flow for it in the br-int. After I add it manually, it works.

Jianyong

[Jianyong Chen (jianyong-jychen)]

The added flows are:
ovs-ofctl add-flow -O openflow13 br-int "table=0, priority=1000,in_port=15 actions=write_metadata:0x4/0xffff,goto_table:40"
ovs-ofctl add-flow -O openflow13 br-int "table=40, priority=30,ip,metadata=0x4,nw_dst=192.168.39.0/24 actions=NORMAL"

[Gal Sagie (gal-sagie)]

Hello,

Can you please describe or share your configuration script because the scenario
you are checking is not clear to me.

Thanks

[Jianyong Chen (jianyong-jychen)]

Actually, the configuration is common. The difference is I make the public network shared to provider vps(virtual private server) instead of vpc. That is, I boot the vm exactly in the public network instead of the private network.
For openstack without dragonflow, the vm can get the IP addresss and communicate with other public network address.
But with dragonflow, it cannot because there is no flow to direct the traffic.

[Omer Anson (omer-anson)]

At the very least, the arp responder flow isn't installed. I didn't test beyond that.

[Omer Anson (omer-anson)]

Tested again and now it works.

Please reopen if the issue persists.