IPB on NGINX, Converting from VB/VBSEO

[AaronP]

According to IPS's migration tool, VB 4.x supports 301 redirects during the migration process.

My questions are:

1) Are these for the "friendly" URL's I'm currently using or just the basic vBulletin URL structure that I'm not using (IOW, is it going to only 301 redirect links that I don't even use?)

2) Do I need to set/develop my new IPS FURL structure before or after migration?

[Boomer12]

These questions would be answered better by the customer support itselfs bescause the Importer and the redirection rules are made by IPS themselves. This is the User2User help section.