Ping

we use ping to test internet connection
diffrent Ping options

example ..
goto START MENU
> RUN
>TYPE CMD
In DOS .. c:>ping 192.168.0.2 -t

-t Ping the specifed host until interrupted

-a Resolve addresses to hostnames

-n count Number of echo requests to send

-l size Send buffer size

-f Set Don't Fragment flag in packet

-i TTL Time To Live

-v TOS Type Of Service

-r count Record route for count hops

-s count Timestamp for count hops

-j host-list Loose source route along host-list

-k host-list Strict source route along host-list

-w timeout Timeout in milliseconds to wait for each reply