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Containers are relatively trusted and the veth tunnels are small networks,
hence let's turn on LLDP both ways for them.
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'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.
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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.
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Should hopefully make it clear that this is not some magic value, just the default we picked.
Suggested by Jan Engelhardt.
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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.
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IPv4LL on them
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