I have a weird idea and was wondering if anyone has tried this or know if
it will or won't work!
I have an ADSL connection to the 'net and although I have a firewall in
place, I am the paranoid sort and would like something else in between the
ADSL router and firewall. The problem of course is that I cannot modify the
config of the ADSL router and give a next hop route to my intervening
machine, besides I don't want to lose the addresses that further subnetting
involves. So I though I might do something with bridging.
INTERNET
|
|
ADSL ROUTER
|
|
Bridge
|
|
Firewall
|
|
PRIVATE NETWORK
I guess the key to this even having any hope of working is if IPCHAINS (or
whatever it's called now) get processed before packets are
bridged. i.e. If I put an input-list on the Bridge's "outside" interface
to stop stuff connecting to the Firewall's IP address (which is on the
"inside" of the bridge) will it be applied before the packet is bridged
through?
I suppose the easiest way is to try it, but time being a scarce resource
these days I thought I'd see if anyone had tried this and succeeded or failed.
TIA.
Graham.
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