HP ProCurve Series 3400cl Release Notes page 40

Enhancements
Release M.08.89 Enhancements
The host's domain must be reachable from the switch. This requires that the DNS server for
■
the switch must be able to communicate with the DNS server(s) in the path to the domain
in which the target host operates.
The fully qualified domain name must be used, and the domain suffix must correspond to
■
the domain in which the target host operates, regardless of the domain suffix configured in
the switch.
Example. Suppose the switch is configured with the domain suffix mygroup.procurve.net and the IP
address for an accessible DNS server. This time, the operator wants to use the switch to trace the
route to a host named "remote-01" in another domain named common.group.net. As long as this domain
is accessible to the DNS server configured on the switch, a traceroute command using the target's
fully qualified DNS name should succeed.
ProCurve# traceroute remote-01.common.group.net
traceroute to 10.22.240.73
1 hop min, 30 hops max, 5 sec. timeout, 3 probes
1 10.28.229.3
2 10.71.217.1
3 10.0.198.2
4 10.22.240.73
Figure 4. Example Using the Fully Qualified Domain Name for an Accessible Target in Another Domain
Configuring and Using DNS Resolution with Ping and Traceroute Commands
1. Determine the following:
a. the IP address for a DNS server operating in a domain in your network
b. the domain name for an accessible domain in which there are hosts you want to reach with
ping and/or traceroute commands. (This is the domain suffix in the fully qualified domain
name for a given host operating in the selected domain. Refer to
Note that if a domain suffix is not configured, fully qualified domain names can be used to
resolve ping and traceroute commands.
c. the host names assigned to target IP addresses in the DNS server for the specified domain
2. Use the data from steps 1a and 1b to configure the DNS entry on the switch.
Use either ping or traceroute with the host names for the target devices whose connectivity you
3.
are testing or troubleshooting.
30
0 ms 0 ms
0 ms 0 ms
1 ms 0 ms
0 ms 0 ms
Fully Qualified Host Name for
the Target Host
0 ms
0 ms
0 ms
IP Address for Target Host
0 ms
"remote-01"
"Terminology" on page 28.)