Cisco pocket tracer serial config

[mcepito08]

Hello everyone!

I am trying to give out ip to serial port with /8 mask and i have an error i attached a picture please help me i need to do this for tomorrow. 

Thanks.

[mcepito08]

Oh and whats even more interesting that i can set the same mask on an other router im confused

[Richard Burts]

I am not surprised that you can set that mask on another router. And in fact you should easily set that mask on this router - if you correct the error in the address. You specified address 10.0.0.0. That address is the address of the class A network. You can not use the network address as the address of a host in the network. Make it 10.0.0.(anything other than 0 or 255) and it should work fine.

[Richard Burts]

One way to think about this is to remember that the /8 mask (255.0.0.0) means that the first octet is the network part of the address, and the other octets are the host part of the address. In the host part of the address at least one bit must be a one and in your post all the host bits are zeros and that is an error.