Is anyone familiar with "Hairpin DNS"

[pfellner]

I have a network behind an 861 and users are unable to access e-mail from the local exchange server from their iPads using the 802.11wireless network.  The wilrelss network is working fine and the iPad users connect fine.

I was told that that i need to configure "hairpin DNS"  Can someone offer more info on this?

Thanks!

[robert.horrigan]

Hairpin NAT:  You can google a few examples.  Here's one from a decent blog I follow.

http://ccie-in-3-months.blogspot.gr/2008/12/nat-hairpinning-using-nat-pools-pbr.html

[ALIAOF_]

I don't believe you should have to do NAT hair pinning here so that the wireless clients can access the local exchange server.  You can't even ping the local exchange server from the wireless network?