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#!rsc by RouterOS
# RouterOS script: ipv6-update
# Copyright (c) 2013-2024 Christian Hesse <mail@eworm.de>
# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
#
# requires RouterOS, version=7.12
#
# update firewall and dns settings on IPv6 prefix change
# https://git.eworm.de/cgit/routeros-scripts/about/doc/ipv6-update.md
:global GlobalFunctionsReady;
:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
:do {
:local ScriptName [ :jobname ];
:global LogPrint;
:global ParseKeyValueStore;
:global ScriptLock;
:local PdPrefix $"pd-prefix";
:if ([ $ScriptLock $ScriptName ] = false) do={
:error false;
}
:if ([ :typeof $PdPrefix ] = "nothing") do={
$LogPrint error $ScriptName ("This script is supposed to run from ipv6 dhcp-client.");
:error false;
}
:local Pool [ /ipv6/pool/get [ find where prefix=$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);
$LogPrint warning $ScriptName ("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={
$LogPrint info $ScriptName ("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 Prefix [ /ipv6/address/find where from-pool=$Pool interface=($Comment->"interface") global ];
:if ([ :len $Prefix ] = 1) do={
:set Prefix [ /ipv6/address/get $Prefix address ];
:if ([ :typeof [ :find ($ListEntryVal->"address") "/128" ] ] = "num" ) do={
:set Prefix ([ :toip6 [ :pick $Prefix 0 [ :find $Prefix "/64" ] ] ] & ffff:ffff:ffff:ffff::);
:local Address ($ListEntryVal->"address");
:local Address ($Prefix | ([ :toip6 [ :pick $Address 0 [ :find $Address "/128" ] ] ] & ::ffff:ffff:ffff:ffff));
$LogPrint info $ScriptName ("Updating IPv6 address list with new IPv6 host address " . $Address . \
" from interface " . ($Comment->"interface"));
/ipv6/firewall/address-list/set address=$Address $ListEntry;
} else={
$LogPrint info $ScriptName ("Updating IPv6 address list with new IPv6 prefix " . $Prefix . \
" from interface " . ($Comment->"interface"));
/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/find where from-pool=$Pool interface=($Comment->"interface") global ];
:if ([ :len $Prefix ] = 1) do={
:set Prefix [ /ipv6/address/get $Prefix address ];
:set Prefix ([ :toip6 [ :pick $Prefix 0 [ :find $Prefix "/64" ] ] ] & ffff:ffff:ffff:ffff::);
:local Address ($Prefix | ([ :toip6 ($RecordVal->"address") ] & ::ffff:ffff:ffff:ffff));
$LogPrint info $ScriptName ("Updating DNS record for " . ($RecordVal->"name") . \
($RecordVal->"regexp") . " to " . $Address);
/ip/dns/static/set address=$Address $Record;
}
}
}
} on-error={ }
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