Subnet mask question

[jonesin39]

so I'm trying to answer a homework question but i am pretty lost right now with it. If anyone could shed some light on this I'd really appreciate it.

Here's the question:

Describe the structure of IP addresses within a class B network, if the subnetid is 2 bits, and the hostid is 14bits.
What would the subnet mask be for this network?

thanks!

 

[GhislainG]

http://www.tcpipguide.com/free/t_IPAddressClassABandCNetworkandHostCapacities.htm

Mask 255.255.192.0 represents 18 bits, leaving the last 14 for host ids.

 

[D Ras 88]

so I'm trying to answer a homework question but i am pretty lost right now with it. If anyone could shed some light on this I'd really appreciate it.

Here's the question:

Describe the structure of IP addresses within a class B network, if the subnetid is 2 bits, and the hostid is 14bits.
What would the subnet mask be for this network?

thanks!

255.255.240.0/25 - subnet mask/CIDR(mask bits)11111111.11111111.11110000.00000000 - subnet mask binary
4 host bits 14 max. host
4 subnet bits 16 max. subnets

 

[Kewlx25]

http://www.tcpipguide.com/free/t_IPAddressClassABandCNetworkandHostCapacities.htm

Mask 255.255.192.0 represents 18 bits, leaving the last 14 for host ids.

^ What this guy said