No. Our network is a small one. <100 users/systems. SO, if I understand you correctly... It is just a matter of changing the ip addresses on the main box and the exchange box(Both running 2KSrvr) And reboot? Obviously making the relevant changes to the dhcp side. John Parker, MCSE IS Admin. Senior Technical Specialist Alpha Display Systems. Alpha Video 7711 Computer Ave. Edina, MN. 55435 952-896-9898 Local 800-388-0008 Watts 952-896-9899 Fax 612-804-8769 Cell 952-841-3327 Direct jp@xxxxxxxxxxxxxx "Be excellent to each other" ---End of Line--- -----Original Message----- From: Sullivan, Glenn [mailto:GSullivan@xxxxxxxxxxxxxx] Sent: Tuesday, September 14, 2004 7:30 AM To: windows2000@xxxxxxxxxxxxx Subject: [windows2000] Re: Changing IP of AD Box If you are not going to reboot the servers, definitely perform an IPConfig /RegisterDNS after the change. Have you defined AD Sites based on your subnets? If so, they will need to be changed to. But if you didn't set them up, don't worry about them. Glenn Sullivan, MCSE+I MCDBA David Clark Company Inc. -----Original Message----- From: windows2000-bounce@xxxxxxxxxxxxx [mailto:windows2000-bounce@xxxxxxxxxxxxx] On Behalf Of John Parker Posted At: Monday, September 13, 2004 4:00 PM Posted To: Windows 2000 Conversation: [windows2000] Some Exchange 2003 Questions Subject: [windows2000] Changing IP of AD Box Hi all... We are running: AD Box: Dual xeon with Win2K SVR fully spacked. Exchange box: Dual xeon with Win2K SVR fully spacked. We are changing ISPs here pretty quick which means that we will have a different class C soon. I am implementing NAT finally, and I am curious. Is there anything I need to watch out for when changing the IP of my Active Directory box? Thanks ahead of time. John Parker, MCSE IS Admin. Senior Technical Specialist Alpha Display Systems. Alpha Video 7711 Computer Ave. Edina, MN. 55435 952-896-9898 Local 800-388-0008 Watts 952-896-9899 Fax 612-804-8769 Cell 952-841-3327 Direct jp@xxxxxxxxxxxxxx "Be excellent to each other" ---End of Line--- -----Original Message----- From: Sullivan, Glenn [mailto:GSullivan@xxxxxxxxxxxxxx] Sent: Monday, September 13, 2004 12:17 PM To: windows2000@xxxxxxxxxxxxx Subject: [windows2000] Re: Some Exchange 2003 Questions First off, are they members of the same exchange organization? I.e., when you installed Exchange 2k3, did you do it as a server that is part of your 5.5 org, or did you create a new org? If so, it should be fairly easy... If not, it's going to be a bit more complicated. Rather than write up both, I guess I'll wait for an answer... Glenn Sullivan, MCSE+I MCDBA David Clark Company Inc. -----Original Message----- From: windows2000-bounce@xxxxxxxxxxxxx [mailto:windows2000-bounce@xxxxxxxxxxxxx] On Behalf Of windows2000.freelists.store@xxxxxxxxxxxx Posted At: Monday, September 13, 2004 12:26 PM Posted To: Windows 2000 Conversation: [windows2000] Some Exchange 2003 Questions Subject: [windows2000] Some Exchange 2003 Questions Afternoon all, At present I am running an instance of Exchange 2003 on Windows Server 2003, and an instance of Exchance 5.5 on Windows NT4. The exchange 5.5 box is running off an expensive (as in pay-per-minute) ISDN line and is our current live mail server. It pulls our company emails down from a POP3 box, via a program called pullmail. The 2k3 server is on a fixed price DSL connection and is going to be our new mail server, and it will be sending and receiving messages via direct SMTP. One of my problems is that I already have a full-time job providing tech support on our products so have little time to do research on the best way to migrate, let alone perform the actual migration, but am being put under a little pressure to get the traffic off the expensive, slow ISDN line. Is there a way I can direct the Exchange 5.5 boxes traffic through the 2K3 box? I can see in Ex5.5 there is an option to forward all email to a certain SMTP host for delivery. If I enter the internal IP address of the 2K3 box, and give that IP permission to relay on the 2K3 box will outgoing mail be delivered? Secondly, is there a way I can get the 2K3 box to download the pending messages from our POP3 box, and forward them directly onto the SMTP service on the 5.5 box? I couldnt find any way of setting up a POP3 collection service, only a POP3 server. Is this even worth doing, so should I just spend the time sitting down and getting the migration done once and for all? Thanks for reading. 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