Error with external / network API

Guys,

I'm doing some tests on my lab environment, but not over and over again.

My deployment environment have 2 groups (mgmt and nova). The two have only 1 uplink, and the uplink is attached to a DVS with 2 groups of ports: management and external. Two of these PGs are related to VLAN 10.

The problem is that, even the deployment is going well, I can not access the API networks (external load balancing, for example).

I see LB machines have an eth0 (who works on the network in-house / balancing) and the eth1 with access 'external '. I am able to ping, the viomgr IPs on eth0 and the physical IP on eth1, but not the VIP of the eth1 (shown with ip addr command).

I don't know if this problem is related to something on DVS, NSX or any other thing. I just installed and reinstalled my environment using any means of different configuration and it does not work.

So I tried a stop of the load balancer and but this IP address on the machine eth0 and the API has worked well.

No idea why this problem with networking occurs?

Also, I tryied to set up NSX using frames, as well as MTU 1600.

TKS in tips.

Hi Ricardo,

One of the VIO requirements is that the direction and external port groups should use different network addresses. From what you described, it seems that you are using the same subnet for two groups of ports. If you are not able to transfer using different subnets, use these commands to work around the problem (run on the two load balancers):

sysctl-w net.ipv4.conf.eth0.rp_filter = 0

sysctl-w net.ipv4.conf.eth1.rp_filter = 0

It is not persistent if balancing charge are restarted. Note, that it is not a supported configuration and has specific security implications.

Hope that helps.

Best regards

Karol

Tags: VMware

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