BTW - that seemed to work, thanks. putting /18 changed the netmask as i wanted. I see that the PREFIX value in the corresponding ifcfg-<int> file changes accordingly also. thanks againK On Thursday, March 14, 2019, 11:58:57 AM EDT, Pete Biggs <pete@xxxxxxxxxxxx> wrote: On Thu, 2019-03-14 at 15:42 +0000, KM via CentOS wrote: > I should have mentioned that I tried nmtui but found no settings for > a netmask anywhere. like I said …. dummy. It's part of the IP address - so you put something like 192.168.0.1/24 for a 255.255.255.0 subnet. It's called a CIDR address. P. _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos