routeros-scripts/ipv6-update

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#!rsc
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# RouterOS script: ipv6-update
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# Copyright (c) 2013-2019 Christian Hesse <mail@eworm.de>
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#
# update firewall and dns settings on IPv6 prefix change
:local pool [ / ipv6 pool get [ find where prefix=$"pd-prefix" ] name ];
:local addrlist [ / ipv6 firewall address-list find where comment=("ipv6-pool-" . $pool) ];
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:local oldprefix [ / ipv6 firewall address-list get $addrlist address ];
# give the interfaces a moment to receive their addresses
:delay 2s;
if ($oldprefix != $"pd-prefix") do={
:log info ("Updating IPv6 address list with new IPv6 prefix " . $"pd-prefix");
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/ ipv6 firewall address-list set address=$"pd-prefix" $addrlist;
:foreach record in=[ / ip dns static find where comment~("ipv6-pool-" . $pool) ] do={
:local comment [ :toarray [ / ip dns static get $record comment ] ];
:local intname [ :pick [ :pick $comment 1 ] 10 99 ];
:local suffix [ :pick [ :pick $comment 2 ] 7 99 ];
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:local prefix [ / ipv6 address get [ find where interface=$intname from-pool=$pool global ] address ];
:local prefix64 [ :pick $prefix 0 [ :find $prefix "::/64" ] ];
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:local name [ / ip dns static get $record name ];
:if ([ :len $name ] = 0) do={
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:set name [ / ip dns static get $record regex ];
}
:log info ("Updating DNS record for " . $name . " to " . $prefix64 . ":" . $suffix);
/ ip dns static set address=($prefix64 . ":" . $suffix) $record;
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}
}