>> Hey everyone, we run a WiSP behind our main m0n0wall.  When our fiber 
>> provider has
>> issues (like for 12 hours this morning) we can get hundreds of calls 
>> about service being
>> unavailable.  Since I have never used the Captive Portal I thought I 
>> would ask if it is
>> possible to turn it on (manually) when our service goes down and have a 
>> page that lets
>> everyone know what's going on.
>>
>
> Yes, but...
>
>
>> Looking at the Captive Portal page it asks for the Interface to run it 
>> on.  I use a different
>> VLAN for each POP that we have (14 in total right now) so I'm not sure 
>> where to go from
>> there.
>>
>
> You can only run CP on one interface at a time. In this case, can you
> do it on a box upstream from this one you're talking about?

So.... possibly stick another m0n0wall as a filtered bridge in-between the 
main m0n0 and the trunk to the network?