This was fixed in v257, which is present in 25.04.
** Changed in: systemd (Ubuntu)
Status: Triaged => Fix Released
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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:
Fix Released
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
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