Resolving Host Names; Using Ping - 3Com 3C421600A Reference Manual

40 C 2: A
HAPTER DMINISTRATIVE
Resolving Host
Names

Using Ping

T
OOLS
Before you can resolve a host, you must have added a Domain Name
Service (DNS) local host and server entry for resolution. To do so, use the
add dns host <name> address <ip address>
commands.
<ip address>
Example:
add dns server 133.114.121.45 preference 1 name "Our DNS
server
add dns host hahvahd.college-hu.com
host hahvahd
Screen output example:
Network Name: hahvahd.college-hu.com
is resolved to Address: 133.114.121.015
The ping Command
The command is very helpful in testing the RAS 1500 connectivity
ping
with other network devices. Options let you set ping attempts (count),
the period between ping attempts (interval), the time before quitting
(timeout), a string value specifying data to be sent (data), the ping
maximum packet dimension (size), the ping process off screen
(background), the progressive ping output for each ping request
(verbose), and the erasure of entries in the Remote Ping Table
(self_destroy_delay).
The CLI can perform a ping with either verbose or background selected,
but not both. Verbose causes the CLI to display information for each PING
transmitted. Background causes the CLI to start the PING request and
then ignores it. This diagnostic tool can also be initiated from an Simple
Network Management Protocol (SNMP) station. Use the following
command:
ping <IP address>
background [yes|no]
count [maximum packets]
data [string]
interval [seconds]
self_destroy_delay [minutes]
size [data size]
timeout [1-60]
verbose [yes|no]
and
add dns server
address 133.114.121.15