255.255.0.0 Class B 128.0.0.0 - 191.254.254.254 default subnet 255.255.0.0
If not subnetted then this is a class B address: 255.255.0.0
255.255.0.0
26
I think I can answer your question -- once you ask it. 802.11 is a wireless ethernet protocol, there are currently 3 subtypes; a, b and g. In order to have any computers or laptops connected to the same network, the wireless access point would need to be plugged into the ethernet hub. Unless the wireless network is subnetted, i.e. the wireless access point provides the IP addresses for its client computers, the WAN port on the wireless access point may not be used. The AP may be connected in client mode, i.e. connected via a LAN port and not the WAN port, bypassing the internal router, if one exists on your model AP. This allows the wirelessly connected computers to get their IP addresses from the network DHCP server. Perhaps this may already have answered your question(s)!
10.0.0.0/16 is subnetted, 1 subnets D 10.5.0.0[90/205891] via 192.168.1.2, S0/0/0 10.0.0.0/24 is subnetted, 4 subnets D 10.5.0.0[90/205198] via 192.168.1.2, S0/0/0 10.0.0.0/22 is subnetted, 1 subnets D 10.5.0.0[90/205901] via 192.168.1.2, S0/0/0 10.0.0.0/8 is subnetted, 4 subnets D 10.5.0.0[90/205001] via 192.168.1.2, S0/0/0
65,534
If your address is not subnetted, then the default subnet mask would be used. For this class address, it would be 255.0.0.0
255.255.254.0
Each device can be identified by its IP address (assigned for the network and can be subnetted) and its MAC - which is a device identifier supposedly unique to the device.
There isn't just a single subnet mask that could be used for that address. The default subnet mask would be 255.0.0.0, but there could be others if the network is subnetted.
You have a class C network connection. Since the subnet mask was not specified I can't tell if it is a traditional class C or if the network has been subnetted.
The subnet id identifies which smaller network within a larger network (the subnetted network) the packet should be delivered to. The subnet id is part of the extended network prefix which is used for routing.
A general industry rule of thumb is to use the first IP address in a range for the default gateway address. That would be .1 for most classful, non-subnetted networks.
The gateway address can only be assigned after the subnet mask is declared. You really can't define both from just an IP address of a single node. The network may or may not be subnetted.