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[FW1] Testing Routing with Ping / CP 2000 on NT4



> FW-1 Users,
> 
> I have a scenario that has come up several times during troubleshooting.
> See the crude ANSI art network diagram. 
> 
> Summary of relevant info:
> 1. Ping from VPN-1/NT4 to 192.168.20.1 fails.
> 2. Ping from 192.168.20.1 to 192.168.10.1 succeeds. 
> 3. Pings from Other PC's on the 192.168.10.0 network to 192.168.20.1
> succeed.
> 4. The FR routers do not have a default route. They only have a route to
> the 192.168.10.0 network.
> 
> Questions:
> Q1. Why does ping fail?
> Q2. Does NT automatically use the closest interface to source a ping? (Did
> my ping to 192.168.20.1 originate from 192.168.10.1 or 12.10.10.2?
> Q3. If dual homed NT systems have a 'primary'? NIC, How do you know which
> one is primary?
> 
> Network Diagram:
> 12.10.10.2
> Ext Int
>  ___o___
> |       |
> |VPN-1  |
> |NT4    |
> |       |
>  ___o___
> Int Int
> 192.168.10.1                     Other PC's
>     |                               |
>     |  Network 192.168.10.0/24      |
> -------------------------------------
>     |
> 192.168.10.254
>  ___o___
> |       |
> | Router|
> |       |
> |       |
>  ___o___
>     |FR Cloud
>  ___o___	  ___o___
> |       |	 |       |
> | Router|	 |PC     |
> |       |___ |       |____ Other PC's
> |       |	 |       |
>  ___o___	  ___o___
> 
> 192.168.20.1	192.168.20.2
> 
> 
> Thank You,
> 
> 
> Kevin Palmer 
> Network Engineer - MCSE+I, CCSE
> Granite Solutions, Inc. 
> P:> P:> F:> http://www.gsite.com
> 


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