Have anybody ever thought of this configuration?
(or have succesfully made it work)

Routing and NAT on router1, router2, and firewall
may make this happen


 Internet          Internet
    |                 | 
  Router1           Router2
    |                 |
    |in               |out
    |________   ______|
             | |
             | |
            Switch
              |
              |
           Firewall ---- DMZ
              |
              |
      Internal network

-----------------------------------------------------------


Hi all you experts,

I have got some question regarding increasing of the
number of Internet connection that can be handled by
FW-1. Currently (shown in Fig 1), we have a Checkpoint
Firewall FW-1 running with a single connection to the
internet. 

                     Internet
                        |
                        |
                        |
                -----------------
                |   Checkpoint  |      DMZ
                |    Firewall   |------------------
                |      FW-1     |
                -----------------
                        |
                        |
                        |
                Internal network

                     Fig. 1

But we would like to add another leased line to
connect our network to the Internet (ie 2 leased line
to the Internet). I would like to find out if it is
possible to use the same Firewall FW-1 to connect to
the Internet as shown in Fig 2. Have any of you done
this before, if this is possible, could you advise me
on how I could do it. Any help is greatly appreciated.
Thanks. 

             Internet             Internet
         (first connection)   (second connection)
                 |                 |
                 |                 |
                 |                 |    
                ---------------------
                |   Checkpoint      |    DMZ
                |    Firewall       |----------------
                |      FW-1         |
                ---------------------
                        |
                        |
                        |
                 Internal network

                     Fig. 2
               


Thanks in advance.
A. Page



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