[Bug 1743200] Re: No support for interface labels

[Stelios Vouzonikos]

** Also affects: netplan
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1743200

Title:
  No support for interface labels

Status in netplan:
  New
Status in nplan package in Ubuntu:
  Triaged

Bug description:
  In the old /etc/network/interfaces I could define a virtual interface:

      auto eth0
      iface eth0 inet static
          address aaa.aaa.aaa.aaa
          netmask 255.255.255.0
          gateway aaa.aaa.aaa.1

      auto eth0:0
      iface enp7s0f0:0 inet static
          address bbb.bbb.bbb.bbb
          netmask 255.255.255.0

  This is not possible to achieve with the netplan. The only exisiting
  posibilities are either to create a VLAN, which may be not an option
  in some networks where you have no access to other hosts, or to define
  both addresses for one interface:

      network:
        version: 2
        renderer: networkd
        ethernets:
          eth0:
            addresses: [aaa.aaa.aaa.aaa/24, bbb.bbb.bbb/24]
            gateway4: aaa.aaa.aaa.1

  This solution is not optimal either, because configuring iptables or
  some services may require specific interface name for a single
  network.

  It should be possible to add the same physical interfaces with
  different networks and different alias names.

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