IP Alias in /etc/NetworkManager/system-connections

Rocky Linux General
1

Dear All,

Could you please let me know if old IP aliases will work in Rocky Linux 9.1? I tried adding one more file like eno1:1 but was not able to start.

Best regards,

Arvind

2

Why do you want to add an alias? Single interface can have multiple addresses (and on IPv6 always does).

3

How I can address multiple address (diffrent subnet)?

4

The man nm-settings describes:

ipv4 setting
IPv4 Settings.

  Properties:

  addresses
      Alias: ip4

      Array of IP addresses.

      Format: a comma separated list of addresses

If I had connection “eno1”, I could set its addresses with:

nmcli con mod eno1 ipv4.addresses "10.20.30.42/24, 192.168.4.7/24"

(That was addresses on two subnets.)

If I had control of the other end of the wire and that end would support VLANs, then I would rather create two VLANs, create the two VLAN connections on top of eno1, and assign IP addresses to the appropriate VLAN connections (preferably with DHCP). (See man nmcli-examples)