Richard Burts Thu, 10/04/2007 - 07:27
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Cindy


The ip classless command is used in IOS to enable forwarding to supernet addresses. In practical terms it usually controls whether the device can forward to the default route a packet whose destination address is for a subnet that is not in the routing table but another subnet of that network is in the routing table.


That makes a lot more sense on a layer 3 device which will have a more sophisticated routing table. On a layer 2 switch like the 2950 it would seem to make less sense. My guess is that it shows up to maintain compatibility in IOS structures.


HTH


Rick

cindylee27 Thu, 10/04/2007 - 08:50
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Hi Rick,

Thanks for the explaination but is there any eg: for the supernet addresses u are referring to differentiate ip classless and ip classful ? :)




Richard Burts Thu, 10/04/2007 - 09:52
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Cindy


I do not understand the follow up question that you are asking. Can you help me understand better what you are looking for?


HTH


Rick

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