UPnP Multi-WAN

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Revision as of 11:30, 18 May 2014 by NetworkPro (talk | contribs)
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  • 1. Make the simplest UPnP config for just WAN1
  • 2. Add the following script as a schedule: will clone UPnP Dynamic NAT entries as normal NAT entries for WAN2.

Schedule time can be every minute.

(set <WAN2 IP> manually)

:global UPnPs [/ip fi nat find dynamic];
:if ($UPnPs != $UPnPz) \
do={ :global UPnPz; :set $UPnPz $UPnPs;
/ip fi nat remove [/ip fi nat find comment="UPnP_Cloned"];
:foreach i in=([/ip fi nat find dynamic]) \
do={/ip fi nat add chain=dstnat dst-address="<WAN 2 IP>" \
protocol=[/ip fi nat get $i protocol] to-addresses=[/ip fi nat get $i to-addresses] \
to-ports=[/ip fi nat get $i to-ports] action=dst-nat \
dst-port=[/ip fi nat get $i dst-port] comment="UPnP_Cloned"}}

Same script easier to read with syntax colorization

  • 3. For large networks you may find it useful to clean any Dynamic NAT entries and cloned NAT entry every other night, as old ones may pile up:
/ip firewall nat remove [/ip firewall nat find comment="UPnP_Cloned"]