Wallabybob: version 2.0.1 on the production router, 2.0.2 on the new one. What I mean by export and import is that I'd like to be able to copy a file/files from the production router and paste in the new router, much like the ex- and import of certificates.
You were right: entering identical parameters produces identical rolls so that part is covered, thanks
I would rather not copy parts of the configuration file (config-routername-date.xml) because I suspect it may contain junk and errors though the voucher part seems clean enough.
The production router has not been receiving the attention it should have: it was upgraded from 1.2.3 to 2.0 and 2.0.1; I have been hacking the OS a bit from the command line and it has been transfered to new (old) hardware a couple of times. It is now spontaneously rebooting every few days without any errors logging. I checked the memory and the disk and both are alright so I suspect the installation if finally fubar. So I purchased two new, identical machines and am in the process of rebuilding the config from scratch in order to not inherit any strangeness that has grown into the current setup.
I do make regular backups of the PfSense configuration file.
Thanks for your help