Where can I set up "Subnet Mask" in "Static IP" of ethernet configuration?
Different name (Network prefix length) is used on this IFP instead of "Subnet Mask". Please refer to the following steps for finding "Network prefix length".
1) Select "Setting"
2) Select "Ethernet"
3) Select "Ethernet configuration"
4) Select "Netwotk prefix length" and change the number based on the matching table below.