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strange NAT question

I have several customers connected to my WAN, and I use NAT on their source address to make it easier to define my firewall rules and track traffic. I created a loopback interface to use as the NAT source. An example is:

<snip>

interface Loopback10

ip address 10.228.28.25 255.255.255.248

ip nat inside source static 172.17.1.2 interface Loopback10

<snip>

Now, this NAT setup works for the production traffic, but I have noticed that I can't ping the address for loop10 - even locally on the router! I found this out while doing an extended ping using the loop10 interface as the source. It did not work, and I found that odd behavior mentioned above.

Is this a result of using the loopback interface in this fashion? Has anyone seen this?

Thanks..

1 REPLY

Re: strange NAT question

Hi George

I feel you need to throw more lite on the setup and what you are exactly trying to do so.

If possible do post out the config which can be helpful

to check out the possible reasons if any..

regds

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