Hi all! Heres a very special question about vlsm: I've a subnet with 4 Bits of host addressing. The Subnetmask is 255.255.255.240, therefore i have 14 host adresses. Is it possible to configure 10 hosts in this subnet and use the other 4 hosts for a further subnet with 255.255.255.252. The problem is, that in one subnet there are both host and another subnet. Thanks a lot. I hope you can help me

I don't think so. But you can break it into 2 of 255.255.255.248 that gives you two subnets with 6 usable hosts each.

Thanks for the fast response. The problem is I have to address 9 clients and one router in the first subnet. The router is connected to another router(subnet) with one client. From the Administration I got only 4 bits. Does it work or not ? Otherwise I have to use the private subnet.

You have to use the private subnet then. I don't think you can break this 4 bits the way you wanted. To make it worse, you can break the 4 bits to 3 subnets with one 255.255.255.248 which gives you 8 hosts with 6 usable, and two subnets with 255.255.255.252 with 4 hosts each, and only 2 usable each. But, that is not what you want anyway.