routeros-scripts/mod/ipcalc.rsc

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#!rsc by RouterOS
# RouterOS script: mod/ipcalc
# Copyright (c) 2020-2023 Christian Hesse <mail@eworm.de>
# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
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#
# ip address calculation
# https://git.eworm.de/cgit/routeros-scripts/about/doc/mod/ipcalc.md
:global IPCalc;
:global IPCalcReturn;
# print netmask, network, min host, max host and broadcast
:set IPCalc do={
:local Input [ :tostr $1 ];
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:global FormatLine;
:global IPCalcReturn;
:global PrettyPrint;
:local Values [ $IPCalcReturn $1 ];
$PrettyPrint ( \
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[ $FormatLine "Address" ($Values->"address") ] . "\n" . \
[ $FormatLine "Netmask" ($Values->"netmask") ] . "\n" . \
[ $FormatLine "Network" ($Values->"network") ] . "\n" . \
[ $FormatLine "HostMin" ($Values->"hostmin") ] . "\n" . \
[ $FormatLine "HostMax" ($Values->"hostmax") ] . "\n" . \
[ $FormatLine "Broadcast" ($Values->"broadcast") ]);
}
# calculate and return netmask, network, min host, max host and broadcast
:set IPCalcReturn do={
:local Input [ :tostr $1 ];
:local Address [ :toip [ :pick $Input 0 [ :find $Input "/" ] ] ];
:local Bits [ :tonum [ :pick $Input ([ :find $Input "/" ] + 1) [ :len $Input ] ] ];
:local Mask ((255.255.255.255 << (32 - $Bits)) & 255.255.255.255);
:local Return {
"address"=$Address;
"netmask"=$Mask;
"networkaddress"=($Address & $Mask);
"networkbits"=$Bits;
"network"=(($Address & $Mask) . "/" . $Bits);
"hostmin"=(($Address & $Mask) | 0.0.0.1);
"hostmax"=(($Address | ~$Mask) ^ 0.0.0.1);
"broadcast"=($Address | ~$Mask);
}
:return $Return;
}