PING Details

A 'ping' is a small data packet which can be sent to any TCP/IP device and should be immediately echoed back to the sender, thus confirming a working route both ways.

You can send Pings from the MS-DOS prompt the router by typing PING followed by the router’s IP address, as shown below. If the pings Timeout (i.e. are not returned) then the router cannot be seen (pinged) from that PC and you have a problem.

Common diagnostic procedures include the following pings :

• From PC to Router ( e.g. ping 192.168.1.1 )
• From PC to external IP address (e.g. ping 194.153.0.18 )
• From PC to external URL (e.g. ping www.draytek.com)

If pinging numeric IP addresses works, but pinging URLs (named addresses) doesn't then the problem is most likely with the DNS facility.

You can also ping directly from the router to internal (LAN) or External (WAN/Internet) IP addresses. To do this, access the router's Telnet interface and use the command 'ip ping'. For example:

> ip ping 192.168.1.10

Pinging 192.168.1.10 with 64 bytes of data
Received Reply from 192.168.1.10, time 20ms