Exchange 2010 to Exchange 2013 work order

Hi ,
Can anyone help me on below points.
I have installed exchange 2013 , and able to view all mail box form existing server 2010.
And move successfully some mail box from 2010 to 2013.
My question are :
Pls let me know the sequence for below reimaging task……
Move all mailbox from 2010 to 2013
Change connectors (received /Send)
NAT the IP in Router (private to Public)
Change the IP address in service provide site. ( OWA for external users)
Need to create or change MX record in internal DNS as well ?
How to change MX record for external DNS.
Note: 2010 is exchange 2010 & 2013 is exchange 2013.
Regards,
Dilip T 

Hi,
Based on my experience, here are the steps of migration from Exchange 2010 to Exchange 2013:
Exchange 2013 Deployment
Digital Certificates Configurations
Configure Exchange-related virtual directories
Configure offline address book (OAB)
Move Internet mail flow from Exchange 2010 to Exchange 2013
Move Client Access from Exchange 2010 to Exchange 2013
Move mailboxes from Exchange 2010 to Exchange 2013
Move public folder data from Exchange 2010 to Exchange 2013
Decommissioning Exchange 2010
Thanks,
Angela Shi
TechNet Community Support

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