RE: strange address

  • From: "Kevin S. Malinowski" <Kevin@xxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Sat, 15 May 2004 15:58:15 -0600

I would venture a guess that your cable modem does have an IP, and quite
likely two of them. One that is the gateway you assign to the external
interface on your ISA box and a non publicly routable IP that your ISP
uses to manage your cable modem from their end.

Normally, the gateway address should show up in the tracert, but I have
seen situations where the ISP's internal IP is returned by tracert
instead.

Kevin 

-----Original Message-----
From: DJG [mailto:intellihome@xxxxxxxxxxx] 
Sent: Friday, May 14, 2004 2:35 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: strange address

http://www.ISAserver.org

That would be a "whatever". ;-) That address (67.182.16.225) lands in my
ISP's block. My external address (ISA's that is) never shows up in a
tracert. My cable modem doesn't have an IP.


      Dan


-----Original Message-----
From: DL.ISA [mailto:ISA.Discussion@xxxxxxxxxxxxxxxxxxx]
Sent: Friday, May 14, 2004 11:46 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: strange address

http://www.ISAserver.org

I take it that the 67.182.16.225 is your external NIC IP address? Or is
that the IP address of your external router/cable modem/dsl
modem/whatever?         

Thank you,
Mitch

-----Original Message-----
From: DJG [mailto:intellihome@xxxxxxxxxxx] Posted At: Friday, May 14,
2004 1:18 PM Posted To: ~ISA Discussion~
Conversation: [isalist] strange address
Subject: [isalist] strange address

http://www.ISAserver.org

I am having problems with my email (couldn't receive) and was looking
around to see what the problem might be. One of the things I did was run
a tracert to the mail server and although it did show the route was down
at ISP another interesting thing caught my eye. A private address showed
up that isn't in my internal DHCP scope nor does it show up on any
internal machine.
It appears to be between the internal and external nics on the ISA
server.
Here is a tracert out to my ISP;

Tracing route to 67.182.16.225 over a maximum of 30 hops

  0  biker.theboat.local [10.5.10.20]
  1  cloud9.theboat.local [10.5.10.2]
  2  10.249.168.1
  3  67.182.16.225

I have no idea where the address 10.249.168.1 comes from. I can ping the
address from any machine inside including the ISA server. It does not
show up when I type ipconfig /all at the ISA server. Can anyone shed
some light on this?


      Dan




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