"I can confirm that we will play against Congo on 8 October in Antwerp and against Cameroon on October 11 in Brussels," Amaju Pinnick said on Nigeria's Channels television.
Congo denied Nigeria a spot at the CAF Africa Cup of Nations in Equatorial Guinea earlier this year by finishing second in the qualifying group behind South Africa.
Tunisia and Algeria are being considered as possibilities for the fixture in November, he added. Egypt currently lead Group G with six points from two matches. Nigeria are second on four points.
The two sides clash in a double-header in what is being seen as the decider for automatic qualification for the tournament in Gabon in two years' time.