I have a server with 4 different IPs over one real NIC. Now i try to setup different virtual network adapter in debian with this IPs. The Problem is, that each IP needs also a specific MAC. Otherwise the connection over the IP will not working.
So first a created a new virtual NIC with a specific MAC:
ip link add link eth0 mac1 address 00:11:22:33:44:55 type macvlan mode bridge
This works very well. After this I set the IP and and the netmask with.
ifconfig mac1 192.168.34.23 netmask 255.255.255.255 broadcast 192.168.34.23
Then I turned the new virtual NIC on with:
ifconfig mac1 up.
Now I can see the virtual NIC over ifconfig with my set settings.
But if I try now to ping a website over this interface with:
ping -I mac1 google.de
I get no response.
I don't know why.
What is my mistake or is there a different way to create a virtual NIC with own MAC and IP ?