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List:       ethereal-users
Subject:    [Ethereal-users] Capturing on a switched LAN - problem with
From:       Peter Marquardt <info () dignition ! de>
Date:       2004-05-27 19:08:41
Message-ID: 40B63CB9.4020501 () dignition ! de
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Hello to all cracks.

The following diagram shows the network which I want to analyze


    .       .
     \---.   \----.
     |PC4|   |PDA1|
     `---'   `----'
                                   R1: 192.168.0.1
                                   R2: 192.168.0.2

             .    .               PC1: 192.168.0.120
     ,---.    \--/    ,---.       PC2: 192.168.0.110
     |PC3|---( R2 )---|PC2|       PC3: 192.168.0.151
     `---'    `--'    `---'       PC4: 192.168.0.180
               |                 PDA1: 192.168.0.108
               |
               |
             ,--.
            ( R1 )
            /`--'\
           /      \              R1: LAN
          /        \---.             DHCP running
         /         |PC1|             WAN -> DSL Modem
  .     /  ,       `---'
  )\------/(                     R2: LAN & wireless AP
< Internet >                        WAN -> unused
  )/------\(
  '        `

The Machine to capture traffic with Ethereal in promiscuous mode is one 
of the PCs connected to R2, unfortunately R2 has no option to repeat the 
traffic from the R1-side. However I have the possibility to specify a 
static route in R2. Now, I tried to look up on the internet what exactly 
a static route means but most documents were on how to set one up in 
cisco routers. I didn't understand the ones which tried to explain it, 
probably because english is not my mother tongue.

What I want to know: Is it possible with that setup to have PC2, 3 or 4 
capture all the traffic, including the traffic originating from PC1 and R1?

Sorry for this quite off-topic question, I know of no better place to ask.

Kind Regards
--Peter Marquardt, dignition media

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