Networking

The following features, enhancements, and changes related to networking are introduced in this Oracle Linux 9 release.

NetworkManager is updated to version 1.48 and includes several fixes and improvements.

The following key changes are included:

The NetworkManager-libreswan VPN plugin for IPsec VPNs used in NetworkManager includes several updates, including:
- A leftsubnet parameter that defines the local subnet when setting up subnet-to-subnet configurations.
- A rightcert parameter to authenticate the remote side of the IPsec connection using a certificate.
- A fix to provide IPv6 in addition to IPv4 when creating IPsec connections.
The nmstate Network Manager state package is updated to include several enhancements, including:
- A cwnd option that controls the maximum number of unacknowledged packets that can be in transit over a network at one time.
- A leftsubnet parameter that defines the local subnet when setting up subnet-to-subnet configurations.
- A rightcert parameter to authenticate the "right" or remote side of the IPsec connection using a certificate.
The mac-address-blacklist property is replaced with mac-address-denylist for 802-11-wireless and 802-11-wired devices as part of an inclusive language initiative.

The firewalld package is updated to version 1.3.4 to include several bug fixes and documentation updates.

You can now enable and use firewalld and nftables systemd services at the same time. Previously, you could only use one at a time.