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Unihomed Exchange RPC Publishing - 13.Jan.2005 6:19:00 PM

scallbe1

Posts: 2
Joined: 13.Jan.2005
Status: offline

Hi!

We have an ISA 2004 server that we want to use to publish Exchange RPC (MAPI) to the Internet.

The ISA server is on the same network segment/subnet as the Exchange server.

Is this possible? Do we have to add another IP address to the ISA server?

Please assist.

Thanks
Sean

Post #: 1

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RE: Unihomed Exchange RPC Publishing - 14.Jan.2005 6:20:00 AM

tshinder

Posts: 47659
Joined: 10.Jan.2001
From: Texas
Status: offline

Hi Sean,

Get a second NIC in that firewall and create a Secure Exchange RPC Server Publishing rule. I'm on the road now and the "Outlook Just Works" scenario using RPC publishing is so cool I'm beside myself! (really, its that neat).

HTH<
Tom

(in reply to scallbe1)

Post #: 2

RE: Unihomed Exchange RPC Publishing - 14.Jan.2005 10:34:00 PM

scallbe1

Posts: 2
Joined: 13.Jan.2005
Status: offline

I put a second NIC in the ISA server. It is on the same subnet as the other one, put marked it as the "external" NIC and excluded its IP address from the external range.

When MAPI tries to hit the ISA box, I am getting "Deny connections" even though there is only one rule in the database (other than the system rules and final "drop all" rule).

The external NIC has the default gateway for that subnet bound to its' adapter; the 'internal' NIC does not.

Any insight? Can the 2 NICs be on the same segment/subnet? There are actually 4 NICS in that server, but 2 of them are for internal support purposes.

Would a diagram help?

(in reply to scallbe1)

Post #: 3