{{tag>IPv6 IP}}
======IPv6 Setup Notes=====

  *https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-comparison_of_dhcpv6_to_radvd
  *https://lum0smaxima.wordpress.com/blog/
  *https://lum0smaxima.wordpress.com/2016/06/24/setting-up-a-dhcp-server-for-ipv6/
  *https://serverfault.com/questions/297714/how-to-configure-radvd-dhcpd6-routing-and-64-subnet-based-on-delegated-prefix
  *http://sophiedogg.com/radvd-and-dhcpd6-server-configuration-for-dynamic-dns/
  *https://superuser.com/questions/1046232/whats-better-radvd-or-dhcpv6-for-local-network-with-ipv6
  *http://test-ipv6.com/
  *https://serverfault.com/questions/205040/accessing-the-dnatted-webserver-from-inside-the-lan
  *https://unix.stackexchange.com/questions/282086/how-does-nat-reflection-nat-loopback-work
  *https://serverfault.com/questions/55611/loopback-to-forwarded-public-ip-address-from-local-network-hairpin-nat
  *http://www.kloepfer.org/ipv6-homenet.html
  *https://tldp.org/HOWTO/Linux+IPv6-HOWTO/index.html
  *https://www.internetsociety.org/resources/deploy360/2014/tutorial-configuring-ipv6-for-linux/
Commands:
  *''sudo vim /etc/netplan/network.yaml''
  *''netplan generate (to test)''
  *'' netplan apply''


  *https://www.tomicki.net/ipv6.router.php
  *https://netplan.io/examples
  *https://www.e2enetworks.com/help/knowledge-base/how-to-assign-ipv6-on-ubuntu-server/
  *https://subatomicsolutions.org/8-freebsd/17-isc-dhcp-ipv4-ipv6-server-on-a-dual-stack-network
  *https://blog.marquis.co/configuring-a-dual-stacked-dhcp-server/
  *http://sophiedogg.com/radvd-and-dhcpd6-server-configuration-for-dynamic-dns/
Commands:
  *''modprobe ipv6''
  *'' ip tunnel add he-ipv6 mode sit remote 216.218.142.50 local 112.213.222.19 ttl 255''
  *''ip link set he-ipv6 up''
  *''ip addr add 2001:470:1f2c:20c::2/64 dev he-ipv6''
  *''ip route add ::/0 dev he-ipv6''
  *''ip -f inet6 addr''

====NFTables Rules to consider for IPv6====
https://wiki.nftables.org/wiki-nftables/index.php/Quick_reference-nftables_in_10_minutes
''sudo nft add rule inet firewall forward iifname "he-ipv6" counter jump base_checks''
''sudo nft add rule inet firewall forward iifname "br0" oifname "he-ipv6" counter accept''

  *IPv4 list network neighbors: ''arp -a''
  *IPv6 list network neighbors: ''ip -6 neigh show''
  *MS Windows list IPv6 neighbors: ''netsh int ipv6 show neigh''
  *Standard systemd nftables configuration file location: ''sudo vim /etc/nftables.conf''
  *List all defined nftables tables: ''sudo nft list tables''
  *List a specific nftables table definition: ''sudo nft list table inet firewall -a    -n -nn''
  *List a specific nftables table definiton: ''sudo nft list table ip nat -a''
    *''-a'' is list handles
    *''-n'' is ?
    *''-nn'' is ?
  *Delete a specific rull by handle: ''sudo nft delete rule ip nat postrouting handle 12''
  *Delete a specific rull by handle: ''sudo nft delete rule inet firewall forward handle 32''
  *Add a speecific rull after a handle: ''sudo nft add rule inet firewall input position 39 tcp dport domain counter''

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