Andrea Jones was telling us:
Andrea Jones nous racontait que :

If you put a section break (next page) before and after the part
where you want the landscape pages you can turn off the page
numbering in that section so you don't get any numbers at all, you
can then restart the numbering after the last section break.

If you had read the whole thread you might have noticed that the OP wanted
to preserve the headers/footers as they were, this is why he did not opt for
a landscape page, not because he did not know how or had trouble with
numbering.

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Salut!
_______________________________________
Jean-Guy Marcil - Word MVP
ISTOO
Word MVP site: http://www.word.mvps.org