Network Discovery for servers that are behind a firewall

[mnt25]

Hello Everyone,

We are currently using network discovery for our servers behind a DMZ as well as our web farm servers. After scheduling network discovery to occurr, none of our servers have been discovered still.

Would anyone have any feedback on what to look for or how this should be configured? We've tried opening up ports according to the link at

http://support.microsoft.com/view/tn.asp?kb=200898

but still we are unable to discover these resources.

Has anyone experienced this before? Any feedback would be greatly appreciated!

Matt