On 26 Mar 2001, at 12:22, Ken Claussen wrote:

> I have experienced this on several PIXen. It seems to be a limitation of the PAT
> implementation. If you have a 1to1 address mapping for your address (Dynamic
> NAT) then it should succeed, however if you are one of the unlucky ones to be
> translated by the PAT overflow address then tracert will not work from a windows
> machine because it uses ICMP which doesn't have a "Port". From most Unix boxes

Strange, I *only* use PAT for my internal users to access outside and I have 
no problems with tracert from my Windows boxes. I'm using a 515 with 
4.4(1) OS (been meaning to upgrade but just can't find the time to do it 
lately!).

Dan

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