======= Net0 (R0) =======

====== Network configuration ======

==== Upstream interface (enp0s3) ====


  #/etc/systemd/network/enp0s3.network
  #
  [Match]
  Name=enp0s3
  
  [Network]
  # SLAAC IPv6 for obtaining the default route.
  LinkLocalAddressing=ipv6
  DHCP=yes
  
  [IPv6AcceptRA]
  DHCPv6Client=yes

==== Downstream interface enp0s8 (LAN2) ====

  #/etc/systemd/network/enp0s8.network
  #
  [Match]
  Name=enp0s8
  
  [Network]
  DHCPPrefixDelegation=yes
  IPv6SendRA=yes
  IPv6AcceptRA=no
  IPForward=yes
  DHCPServer=yes
  
  [DHCPPrefixDelegation]
  UplinkInterface=enp0s3
  SubnetId=8
  Announce=yes
  
  [Address]
  Address=192.168.1.1/24
  
  [DHCPServer]
  PoolOffset=90
  PoolSize=10


==== Downstream interface enp0s9 (LAN3) ====

This interface is configured analogous to enp0s8 except for

  SubnetId=9
  
and

  Address=192.168.2.1/24
  
==== DHCP configuration ====
  
  #/etc/dhcp/dhcpd6.conf
  #
  ...
  # The subnet where the server is attached
  #  (i.e., the server has an address in this subnet)
  subnet6 2001:2db:8073:e00::/64 {
          range6 2001:2db:8073:e00::2 2001:2db:8073:e00::9;
  
          # Use the whole /64 prefix for temporary addresses
          #  (i.e., direct application of RFC 4941)
          range6 2001:2db:8073:e00:: temporary;
  
          # Some /64 prefixes available for Prefix Delegation (RFC 3633)
          prefix6 2001:2db:8073:e10:: 2001:2db:8073:e80:: /60;
  }