User Guide

130 Novell DNS/DHCP Management Utility Administration Guide
Novell DNS/DHCP Management Utility Administration Guide
103-000164-001
September 4, 2001
Novell Confidential
Manual 99a38 July 17, 2001
Pinging www.novell.com [137.65.2.5] with 32 bytes of
data:Reply from 137.65.2.5: bytes=32 time=27ms
TTL=59Reply from 137.65.2.5: bytes=32 time=22ms
TTL=59Reply from 137.65.2.5: bytes=32 time=31ms
TTL=59
If you use the IP address of the host, you will receive the same type of reply.
Using the host's domain name is a good way to determine the host's IP address,
and doing so also causes the client to request DNS name resolution before
sending the ICMP packet. This approach is an excellent way to determine if
DNS name resolution is working. If it is not working, you will receive a
message such as the following:
Unable to resolve www.novell.com.
If DNS name resolution is not working, one of the following conditions might
be the cause:
 The DNS server or DNS domain name is not configured properly on the
client.
 If using DHCP, the DNS server and/or domain name are not properly
configured on the DHCP server.
 The DNS server to which you send DNS name resolution requests is not
functioning.
The PING command has the following syntax:
ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-
v TOS] [-r count] [-s count] [[-j host] | [-k host-
list]] [-w timeout] destination list
Table 11, “PING Options,” on page 130 explains the use of the PING options.
Table 11 PING Options
Option Meaning
-t Ping specified host until interrupted
-a Resolve addresses to hostnames
-n count Number of echo requests to send
-l size Send buffer size