Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Subnet Mask

I want to have 150 hosts for the subnet 192.168.100.xxx, starting with the IP address of 192.168.100.100.  Can you tell me what the subnet mask is?

Thanks.

Diane

1 REPLY
Hall of Fame Super Blue

Re: Subnet Mask

dianewalker wrote:

I want to have 150 hosts for the subnet 192.168.100.xxx, starting with the IP address of 192.168.100.100.  Can you tell me what the subnet mask is?

Thanks.

Diane

Diane

The subnet mask will have to be /24 ie. 255.255.255.0. This will however include hosts 192.168.100.1 -> 254 which is more than you want. If you want 150 hosts you have to use a class C subnet mask because the next one down ie. 255.255.255.128 only covers 126 hosts.

Jon


Cisco are currently donating money to the Haiti earthquake appeal for every rating so please consider rating all helpful posts.

419
Views
0
Helpful
1
Replies