Public bug reported: 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 ** Affects: netplan.io (Ubuntu) Importance: Undecided Status: New ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Also affects: netplan.io (Ubuntu) Importance: Undecided Status: New ** Description changed: 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 . - + 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: "kit" - 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._: "" - + 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 - + 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 + 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 + 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 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/2106017 Title: Network manager still adds default ipv6 route despite setting to ignore it Status in netplan.io package in Ubuntu: New 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/netplan.io/+bug/2106017/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
