debcrafters-packages team mailing list archive

[Christian Ehrhardt <2106017@xxxxxxxxxxxxxxxxxx>]

** Tags removed: server-triage-discuss

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https://bugs.launchpad.net/bugs/2106017

Title:
  NetworkManager still adds default ipv6 route despite setting to ignore
  it

Status in netplan.io package in Ubuntu:
  Incomplete
Status in network-manager package in Ubuntu:
  New

Bug description:
  This is my VPN connection. I set not to add DNS resolving
  (ipv6.ignore-auto-dns: "true") and default route for ipv6 (ipv6.never-
  default: "true")

  Yet after connection it still set the default route via tun0

  These routes I get:
  2a00:1398:300:14::/64 dev tun0 proto kernel metric 50 pref medium
  2000::/3 via 2a00:1398:300:14::1 dev tun0 proto static metric 50 pref medium

  For instance
  $ dig en.wikipedia.org AAAA +short
  dyna.wikimedia.org.
  2a02:ec80:300:ed1a::1

  $ sudo ip -6 r get 2a02:ec80:300:ed1a::1
  2a02:ec80:300:ed1a::1 from :: via 2a00:1398:300:14::1 dev tun0 proto static src 2a00:1398:300:14::1080 metric 50 pref medium

  Maybe I don't understand something here. But the above subnets does
  not cover en.wikipedia.org ipv6 .

  $ sudo cat /etc/netplan/90-NM-6be5abbb-c998-4f66-9752-e2d10a6c13b4.yaml
  network:
    version: 2
    nm-devices:
      NM-6be5abbb-c998-4f66-9752-e2d10a6c13b4:
        renderer: NetworkManager
        networkmanager:
          uuid: "6be5abbb-c998-4f66-9752-e2d10a6c13b4"
          name: "CENSORED"
          passthrough:
            connection.type: "vpn"
            connection.timestamp: "1743602165"
            vpn.ca: "/home/mastier/.cert/CENSORED.pem"
            vpn.connect-timeout: "5"
            vpn.connection-type: "password"
            vpn.dev: "tun"
            vpn.password-flags: "1"
            vpn.remote: "CENSORED:1194:udp"
            vpn.tls-version-min: "1.3"
            vpn.username: "CENSORED"
            vpn.verify-x509-name: "name:CENSORED"
            vpn.service-type: "org.freedesktop.NetworkManager.openvpn"
            ipv4.method: "auto"
            ipv4.never-default: "true"
            ipv6.addr-gen-mode: "default"
            ipv6.ignore-auto-dns: "true"
            ipv6.method: "auto"
            ipv6.never-default: "true"
            proxy._: ""

  $ apt-cache policy network-manager
  network-manager:
    Installed: 1.46.0-1ubuntu2.2
    Candidate: 1.46.0-1ubuntu2.2
    Version table:
   *** 1.46.0-1ubuntu2.2 500
          500 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1.46.0-1ubuntu2 500
          500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages

  $ apt-cache policy network-manager-openvpn
  network-manager-openvpn:
    Installed: 1.10.2-4build2
    Candidate: 1.10.2-4build2
    Version table:
   *** 1.10.2-4build2 500
          500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages
          100 /var/lib/dpkg/status

  $ apt-cache policy netplan.io
  netplan.io:
    Installed: 1.1.1-1~ubuntu24.04.1
    Candidate: 1.1.1-1~ubuntu24.04.1
    Version table:
   *** 1.1.1-1~ubuntu24.04.1 500
          500 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1.0-2ubuntu1.2 500
          500 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages
       1.0-2ubuntu1 500
          500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages

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