RE: Traceroute Question

From: Jorge Coll (jcat_private)
Date: Mon Apr 07 2003 - 08:22:16 PDT

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    Sometimes ISPs assign their internal routers an IP in this address range
    (192.168.*.* / 10.*.*.* / etc).  These addresses aren't uniquely
    addressable (i.e. you can't "ping" them from various locations and
    expect either a response, or a response from that particular host.)  The
    routers (especially border ones) are supposed to be configured NOT to
    route these private ranges, so it is ok for them to use a non-public
    address on these routers.
    
    ~ ).(.
    
    -----Original Message-----
    From: Vineet Mehta [mailto:vineetat_private] 
    Sent: Monday, April 07, 2003 4:20 AM
    To: pen-testat_private
    Subject: Traceroute Question
    
    Hi all,
    
    While trying to do traceroute on one of the server i get the following
    reply:
    
    $traceroute a.b.c.d
     1  192.168.0.254 (192.168.0.254)  0.442 ms  0.397 ms  0.358 ms
     2  62.150.42.1 (62.150.42.1)  1.951 ms  1.315 ms  1.249 ms
     3  172.17.8.149 (172.17.8.149)  43.577 ms  23.481 ms  17.653 ms
     4  border.qualitynet.net (195.226.227.1)  19.935 ms  20.902 ms  21.896
    ms
     5  isp.qualitynet.net (195.226.227.10)  19.928 ms  23.302 ms  21.839 ms
     6  192.168.226.38 (192.168.226.38)  71.321 ms  282.457 ms *
    
    My Question is why I am getting 192.168.226.38 non-route able address
    output in traceroute reply? As far as i think these private address
    space is not route able on the internet.
    
    Any sugestions?
    
    Vineet
    
    
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