Should I be able to ping a device in a different IP address range to me?

Question

I have a couple of bits of kit connected to a LAN switch, the LAN is then connected to the internet. The two bits of kit have static IP addresses. If I connect my laptop to the same switch and allow the network to assign me an IP address I cannot ping the equipment. However if I give myself a static IP address with in the same range (ie 123.123.123.xxx) as the gear I can access them.

Is this normal?

Cheers

Answer 1

If you give the computers a different subnet the wont be able to ping, if you giev them the same subnet they will.

Answer 2

Pining is usually a way of computers\nodes communicating with each other then to ping a computer is usually just to get a response! moreover Pinging is generally used diagnostically to make sure that a host computer\node you are trying to reach is actually operating\active. If, for example, a user can't ping a host, then the user will be unable to use the File Transfer Protocol (FTP) to send files to that host. Ping can also be used with a host that is operating to see how long it takes to get a response back! a ramdon request from an unsoliciated node from a hacker without some firewall protection could leave you computer vulnerable, because then they could use other methods to attack vulnerabillites using trojans etc. Pinging is a protocol used before other protocols like FTP can't actually be activated without the ping response before any other protocol request from a FTP for example this would be denied because it hasnt responded in the first place! Most firewalls pc's are a little more savvy, because it's whats in the packet of infomation, frames and everything else because this is the foundation of every protocol uses, packets, frames and everything else! each contains revelant info about your computer if it was unsolicated it would simply not be recgonised and your computer would relay the infomation back in a error. hope this helps,

Answer 3

Assuming you have the standard default router at your home, the typical IP address is 192.168.1.1 and the subnet is 255.255.255.0.





Try changing the IP address of the two devices on the LAN to either runnning DHCP (where the router will assign the IP address), or to a fixed address like 192.168.1.100 and the other to 192.168.1.101, and your machine to 192.168.1.102., each with a subnet of 255.255.255.0.

Answer 4

Errr... 255.255.255.0 is a subnet mask. You cannot have that as an IP address. I would reccomend you stay clear of anything on 255.255.255.X



If your network is issue this then it isn't working correctly.



This is also not ping-able.

Answer 5

Are your devices all on the same subnet ?

Answer 6

Yes that is to be expected