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What causes an invalid IP address?
The message “Invalid IP Address” indicates a problem with your computer’s network setup. Without a valid IP address your computer cannot use the network. A variety of reasons can make an IP address invalid, such as address conflicts with other computers and network configuration problems.
What happens if I change my subnet mask?
If you change the subnet mask on the statically-configured devices at the same time as you change the subnet mask on DHCP server(s) then you’ll see no changes in behaviour. If you leave devices with the old subnet mask they’ll only be able to talk to devices that still have addresses in the old subnet’s range.
Why does Cisco package tracer say invalid IP?
I’m using Cisco Package Tracer Student to test some networks. But I’m getting the error “Invalid IP for this subnet mask” when I try to set the IP of a PC as 10.1.1.255 OR 10.1.2.0 and the mask as 255.255.254.0, this network is supposed to be an /23 so the valid range should be from 10.1.1.1 to 10.1.2.254.
How to write subnet mask in Cisco packet tracer?
So we need to take two bits from the host portion of the IP address. 192.168.10.1 to 192.168.10.255 is the address range available to us with subnet mask 255.255.255.0, Writing the subnet mask in the binary notation, it is The first 24 bits are network bits and the last eight bits are host bits.
What’s the invalid IP address for this subnet?
It’s because those are invalid host addresses for your network. You are trying to straddle the boundary between two different networks for that network mask. The broadcast address for your network, 10.1.0.0/23, is 10.1.1.255, which is the address you are trying to use.
How to configure IP address in Packet Tracer?
Now Go to CLI, then the global configuration mode, and type interface serial 0 0/0 (or interface s0/0/0). Now, configure an IP address and subnet mask, and then give no shutdown command. (In our case IP address is 10.0.0.2 and subnet mask is 255.0.0.0)