#!rsc by RouterOS # RouterOS script: ipv6-update # Copyright (c) 2013-2023 Christian Hesse <mail@eworm.de> # 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); $LogPrintExit2 warning $0 ("Added ipv6 address list entry for ipv6-pool-" . $Pool) false; } :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={ $LogPrintExit2 info $0 ("Updating IPv6 address list with new IPv6 prefix " . $PdPrefix) false; /ipv6/firewall/address-list/set address=$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 Prefix [ /ipv6/address/find where from-pool=$Pool interface=($Comment->"interface") global ]; :if ([ :len $Prefix ] = 1) do={ :set Prefix [ /ipv6/address/get $Prefix address ]; $LogPrintExit2 info $0 ("Updating IPv6 address list with new IPv6 prefix " . $Prefix . \ " from interface " . ($Comment->"interface")) false; /ipv6/firewall/address-list/set address=$Prefix $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 from-pool=$Pool interface=($Comment->"interface") 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)); $LogPrintExit2 info $0 ("Updating DNS record for " . ($RecordVal->"name") . \ ($RecordVal->"regexp") . " to " . $Address) false; /ip/dns/static/set address=$Address $Record; } }