networkd: emit DNS/NTP/Timezone info via DHCP server by default If we have the data, emit it by default.

network: turn on DHCP timezone passing between container and host Let's turn on DHCP timezone passing from the host to a container, so that the timezone is always in sync.

network: fix 'LinkLocal' -> 'LinkLocalAddressing' in network files 'LinkLocal' was renamed to 'LinkLocalAddressing' in: commit 56fd6bf795926409b087bce406ea851ad89f9fe8 Author: Tom Gundersen <teg@jklm.no> Date: Sat Feb 14 00:32:26 2015 +0100 networkd: .network - rename LinkLocal to LinkLocalAddressing ..but apparently the network files were not updated. Fix this.

networkd: generalize IPv4LL to LinkLocal This allows both IPv4 and IPv6 link-local addresses to be enabled or disabled. By default we still enable IPv6LL and disable IPv4LL. The old config option is kept for backwards compatibility, but removed from the documentation.

network: IPMasquerade= implies IPForward=, hence remove it

doc: network - add comment about default prefix size Should hopefully make it clear that this is not some magic value, just the default we picked. Suggested by Jan Engelhardt.

networkd: add minimal IP forwarding and masquerading support to .network files This adds two new settings to networkd's .network files: IPForwarding=yes and IPMasquerade=yes. The former controls the "forwarding" sysctl setting of the interface, thus controlling whether IP forwarding shall be enabled on the specific interface. The latter controls whether a firewall rule shall be installed that exposes traffic coming from the interface as coming from the local host to all other interfaces. This also enables both options by default for container network interfaces, thus making "systemd-nspawn --network-veth" have network connectivity out of the box.

network: automatically assign each container veth link a /28 IP address range

network: always take possession of host side of nspawn veth tunnels and do IPv4LL on them