#!rsc by RouterOS # RouterOS script: ipv6-update # Copyright (c) 2013-2021 Christian Hesse # https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md # # update firewall and dns settings on IPv6 prefix change # https://git.eworm.de/cgit/routeros-scripts/about/doc/ipv6-update.md :local 0 "ipv6-update"; :global GlobalFunctionsReady; :while ($GlobalFunctionsReady != true) do={ :delay 500ms; } :local PdPrefix $"pd-prefix"; :global LogPrintExit2; :global ParseKeyValueStore; :if ([ :typeof $PdPrefix ] = "nothing") do={ $LogPrintExit2 error $0 ("This script is supposed to run from ipv6 dhcp-client.") true; } :local Pool [ / ipv6 pool get [ find where prefix=$PdPrefix ] name ]; :if ([ :len [ / ipv6 firewall address-list find where comment=("ipv6-pool-" . $Pool) ] ] = 0) do={ / ipv6 firewall address-list add list=("ipv6-pool-" . $Pool) address=:: comment=("ipv6-pool-" . $Pool); :log warning ("Added ipv6 address list entry for ipv6-pool-" . $Pool . "."); } :local AddrList [ / ipv6 firewall address-list find where comment=("ipv6-pool-" . $Pool) ]; :local OldPrefix [ / ipv6 firewall address-list get ($AddrList->0) address ]; :if ($OldPrefix != $PdPrefix) do={ :log info ("Updating IPv6 address list with new IPv6 prefix " . $PdPrefix); / ipv6 firewall address-list set address=$PdPrefix $AddrList; # give the interfaces a moment to receive their addresses :delay 2s; :foreach ListEntry in=[ / ipv6 firewall address-list find where comment~("^ipv6-pool-" . $Pool . ",") ] do={ :local ListEntryVal [ / ipv6 firewall address-list get $ListEntry ]; :local Comment [ $ParseKeyValueStore ($ListEntryVal->"comment") ]; :local Address [ / ipv6 address find where from-pool=$Pool interface=($Comment->"interface") ]; :if ([ :len $Address ] = 1) do={ :set Address [ / ipv6 address get $Address address ]; :log info ("Updating IPv6 address list with new IPv6 prefix " . $Address . " from interface " . ($Comment->"interface")); / ipv6 firewall address-list set address=$Address $ListEntry; } } :foreach Record in=[ / ip dns static find where comment~("^ipv6-pool-" . $Pool . ",") ] do={ :local RecordVal [ / ip dns static get $Record ]; :local Comment [ $ParseKeyValueStore ($RecordVal->"comment") ]; :local Prefix [ / ipv6 address get [ find where interface=($Comment->"interface") from-pool=$Pool global ] address ]; :set Prefix ([ :toip6 [ :pick $Prefix 0 [ :find $Prefix "/64" ] ] ] & ffff:ffff:ffff:ffff::); :local Address ($Prefix | ([ :toip6 ($RecordVal->"address") ] & ::ffff:ffff:ffff:ffff)); :log info ("Updating DNS record for " . ($RecordVal->"name") . ($RecordVal->"regexp") . " to " . $Address); / ip dns static set address=$Address $Record; } }