ARP not working in the external network to find GW MAC address
I installed OpenStack Qeens on Ubuntu network option 2. My ext network is my managemet network Ext-net=192.168.2.0/24 GW=192.168.2.1
I created a private LAN and router to connect My internal network to ext-net. When I run an ARP discovering command in the router to find MAC@ of 192.168.2.1 I get nothing.
ip netns exec qrouter-XXX arping -I qg-f46136d2-68 192.168.2.1
The problem is in OpenStack or in the physical management network?
Thanks for any help.
The gateway address is configured on qg-f46136d2-68. I.e. the interface that sends the ARP request would also have to send the ARP reply. I am not a networking expert, but perhaps the interface thinks this is silly and sulks.
Seriously, try this with any interface. Same result.
For example, eth0 on my home server (physical machine) has address 192.168.1.16:
The problem was from the physical router. I change it and the problem is resolved.