http://www.m0n0.ch/wall/docbook/examples-filtered-bridge.html

On 6/3/05, Daniel Foster <dan at melbourne dot co dot uk> wrote:
> Hi,
>  
> I'm trying to setup m0n0wall to protect webservers in a colo facility.  We
> have a /24 subnet routed to us over a /30 link.  My plan was to assign an ip
> on the /30 to the EXT interface, and then put the /24 on the OPT1 interface,
> (and not use the LAN interface apart from initial config and perhaps SNMP)
> and have m0n0wall do the routing.  We have it setup like this currently with
> Watchguard Fireboxes, but we're having various problems with them so i'd
> like to switch to m0n0 if possible.
>  
> Is the above possible without doing 1:1 NAT and having to give the
> webservers private IPs?
>  
> This setup is slightly different to the example in the documentation - we
> don't want m0n0 doing proxy arp sat on the same subnet as the webservers -
> it needs to have the whole of the /24 on the OPT1 interface 
>  
> I've tried to do this in a test environment in our office but it doesnt seem
> to be working properly - it could be because im simulating it with private
> IPs.
>  
> Any help would be most appreciated.
>  
> Kind Regards,
> Dan Foster
> 
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>  
> 
>