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October 1998, Week 1

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Subject:
IP routing an masks
From:
Alan AMBERS <[log in to unmask]>
Reply To:
Alan AMBERS <[log in to unmask]>
Date:
Thu, 1 Oct 1998 13:06:00 -0400
Content-Type:
TEXT/PLAIN
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TEXT/PLAIN (74 lines) 
Larry -

For the network in the 172.x.x.x range, the *default* subnet mask is
255.255.0.0, not 255.0.0.0.

HTH

/alan
---------------------------------
Larry asked....

> we have a problem here.  when we connect to the network remotely we
have
> 2 options, RAS and CompuServe.
> the RAS connection since it is on the other side of the router I can
> connect to all of the servers, NT, HP 3000 and Unix.
> with the CompuServe connection I have the connections to the NT
servers
> and the Unix server but the hp does not connect.
> I have checked the pings and tracert and have the following
> first with CompuServe connection
> C:\WINDOWS>tracert valtek
>
> Tracing route to valtek.flowserve.com [172.18.10.3]
> over a maximum of 30 hops:
>
>   1   304 ms   276 ms   285 ms  172.21.13.1
>   2   282 ms   278 ms   283 ms  172.21.12.1
>   3   335 ms   317 ms   317 ms  172.29.15.34
>   4   547 ms   377 ms   336 ms  valtek.flowserve.com [172.18.10.3]
>
> Trace complete.
>
> C:\WINDOWS>tracert rpt
>
> Tracing route to rpt.flowserve.com [172.18.10.6]
> over a maximum of 30 hops:
>
>   1   298 ms   268 ms   286 ms  172.21.13.1
>   2   288 ms   274 ms   278 ms  172.21.12.1
>   3   329 ms   327 ms   324 ms  172.29.15.34
>   4     *        *        *     Request timed out.
>   5
> and then the RAS connection
> C:\WINDOWS>tracert rpt
>
> Tracing route to rpt.flowserve.com [172.18.10.6]
> over a maximum of 30 hops:
>
>   1   210 ms   182 ms   174 ms  spvras1.flowserve.com [172.18.10.200]
>   2   236 ms   194 ms   196 ms  rpt.flowserve.com [172.18.10.6]
>
> Trace complete.
>
> C:\WINDOWS>tracert rpt
>
> Tracing route to rpt.flowserve.com [172.18.10.6]
> over a maximum of 30 hops:
>
>   1   189 ms   178 ms   187 ms  spvras1.flowserve.com [172.18.10.200]
>   2   197 ms   198 ms   196 ms  rpt.flowserve.com [172.18.10.6]
>
> Trace complete.
>
> C:\WINDOWS>
>
> it would seem to me that the mask in the gateway configuration in
> ns/3000 is wrong.  yet just today I changed the mask from blank to
> 255.000.000.000 and the hops to 200.  after netcontrol
> net=lan1;update=internet the ping and tracert still do not work.
>
> what am I missing?   any help would be appreciated.
>

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