Troubleshooting

DNS Resolver

Configuring switch “A” with the domain name and the IP address of a DNS server for the domain enables the switch to use host names assigned to IP addresses in the domain to perform ping and traceroute actions on the devices in the domain. To summarize:

Entity:Identity:

DNS Server IP Address

10.28.229.10

Domain Name (and Domain Suffix for Hosts in

pubs.outdoors.com

the Domain)

 

Host Name Assigned to 10.28.229.219 by the

docservr

DNS Server

 

Fully Qualified Domain Name for the IP address

docservr.pubs.outdoors.com

Used By the Document Server (10.28.229.219)

 

Switch IP Address

10.28.192.1

Document Server IP Address

10.28.229.219

 

 

With the above already configured, the following commands enable a DNS- compatible command with the host name docserver to reach the document server at 10.28.229.219.

ProCurve(config)# ip dns server-address 10.28.229.10

ProCurve(config)# ip dns domain-name pubs.outdoors.com

Figure C-28. Configuring Switch “A” in FigureC-27 To Support DNS Resolution

ProCurve# ping docservr

 

 

 

 

 

 

10.28.229.219

is alive, time = 1 ms

 

 

 

 

ProCurve# traceroute docservr

 

 

 

 

 

First-Hop Router (“B”)

 

traceroute to

10.28.229.219

 

 

 

 

 

max, 5 sec. timeout, 3 probes

1

10.28.192.2

1 hop

1 ms

 

0

ms

0

ms

2

10.28.229.219

0 ms

0

ms

0

ms

Traceroute Target

Figure C-29. Example of Ping and Traceroute Execution for the Network in Figure C-27 on Page C-83

C-84