Thank you for your investigation Thomasz, I've assigned the bug to the systemd project instead of netplan.
** Also affects: systemd via https://github.com/systemd/systemd/issues/24852 Importance: Unknown Status: Unknown ** Also affects: systemd (Ubuntu) Importance: Undecided Status: New ** Changed in: netplan Status: New => Invalid ** Changed in: systemd (Ubuntu) Status: New => Triaged ** Changed in: systemd (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1993105 Title: can't add more than ~1024 IP addresses Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: Triaged Bug description: I've migrated from Debian (using /etc/network/interfaces) to Ubuntu 22.04 (using netplan). To my surprise, it's not possible to add more than 1024 IP addresses using netplan. It errors in syslog with: Oct 17 07:19:50 ktsend11 systemd-networkd[678]: /run/systemd/network/10-netplan-ens192.network:3299: Failed to allocate new address, ignoring assignment: Argument list too long Oct 17 07:19:50 ktsend11 systemd-networkd[678]: /run/systemd/network/10-netplan-ens192.network:3300: Failed to allocate new address, ignoring assignment: Argument list too long Oct 17 07:19:50 ktsend11 systemd-networkd[678]: /run/systemd/network/10-netplan-ens192.network:3301: Failed to allocate new address, ignoring assignment: Argument list too long Oct 17 07:19:50 ktsend11 systemd-networkd[678]: /run/systemd/network/10-netplan-ens192.network:3302: Failed to allocate new address, ignoring assignment: Argument list too long As a result, only around 1024 IPs are present in the system: # ip addr|grep -c inet 1027 To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1993105/+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
