UPnP Multi-WAN

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Revision as of 10:22, 18 May 2014 by NetworkPro (talk | contribs) (working solution)
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1. Make the simplest UPnP config for just WAN1.

2. Add the following script: will clone UPnP NAT entries from WAN1 as normal NAT entries for WAN2: (Schedule every few minutes) (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"}}

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"]