network/80-vm-vt.network - systemd - Git at Google

 # SPDX-License-Identifier: MIT-0
 #
 # This config file is installed as part of systemd.
 # It may be freely copied and edited (following the MIT No Attribution license).
 #
 # To make local modifications, one of the following methods may be used:
 # 1. add a drop-in file that extends this file by creating the
 #    /etc/systemd/network/80-vm-vt.network.d/ directory and creating a
 #    new .conf file there.
 # 2. copy this file into /etc/systemd/network or one of the other paths checked
 #    by systemd-networkd and edit it there.
 # This file should not be edited in place, because it'll be overwritten on upgrades.

 # This network file matches vt-* TUN/TAP devices and applies a similar
 # configuration as ve-* to provide NAT/DHCP to VMs.

 [Match]
 Name=vt-*
 Driver=tun

 [Network]
 # Default to using a /28 prefix, giving up to 13 addresses per VM.
 Address=0.0.0.0/28
 LinkLocalAddressing=yes
 DHCPServer=yes
 IPMasquerade=both
 LLDP=yes
 EmitLLDP=customer-bridge
 IPv6SendRA=yes
	# SPDX-License-Identifier: MIT-0
	#
	# This config file is installed as part of systemd.
	# It may be freely copied and edited (following the MIT No Attribution license).
	#
	# To make local modifications, one of the following methods may be used:
	# 1. add a drop-in file that extends this file by creating the
	# /etc/systemd/network/80-vm-vt.network.d/ directory and creating a
	# new .conf file there.
	# 2. copy this file into /etc/systemd/network or one of the other paths checked
	# by systemd-networkd and edit it there.
	# This file should not be edited in place, because it'll be overwritten on upgrades.

	# This network file matches vt-* TUN/TAP devices and applies a similar
	# configuration as ve-* to provide NAT/DHCP to VMs.

	[Match]
	Name=vt-*
	Driver=tun

	[Network]
	# Default to using a /28 prefix, giving up to 13 addresses per VM.
	Address=0.0.0.0/28
	LinkLocalAddressing=yes
	DHCPServer=yes
	IPMasquerade=both
	LLDP=yes
	EmitLLDP=customer-bridge
	IPv6SendRA=yes