help : one isdn problem with ddr and nat

Hello, I have a problem about isdn DDR? One Cisco 3620 router, isdn bri interface.I config it as DDR. I used dynamic NAT.The public interface(bri 0/0) ip is negotiated. Now I can ping the internet webside on my router.But I can't ping it successfully on my workstation. I debug NA

help : one isdn problem with ddr and nat

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help : one isdn question about ddr and nat

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help : one isdn question about ddr and nat

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a isdn question about ddr and nat

Hello, I have a problem about isdn DDR? One Cisco 3620 router, isdn bri interface.I config it as DDR. I used dynamic NAT.The public interface(bri 0/0) ip is negotiated. Now I can ping the internet webside on my router.But I can't ping it successfully on my workstation. I debug N