Reference Guide

Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
9.0.0.0 Added support for IPv6 addresses.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.1.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-6.1.1.0 Introduced on the E-Series.
Usage
Information
The following describes the show hosts command in the following example.
Field Description
Default domain... Displays the domain name (if configured).
Name/address
lookup...
States if DNS is enabled on the system.
● If DNS is enabled, the Name/Address lookup is domain service.
● If DNS is not enabled, the Name/Address lookup is static mapping
Name servers
are...
Lists the name servers, if configured.
Host Displays the host name assigned to the IP address.
Flags Classifies the entry as one of the following:
● perm — the entry was manually configured and will not time out
● temp — the entry was learned and will time out after 72 hours of inactivity.
Also included in the flag is an indication of the validity of the route:
● ok — the entry is valid.
● ex — the entry expired.
● ?? — the entry is suspect.
TTL Displays the amount of time until the entry ages out of the cache. For dynamically
learned entries only.
Type Displays IP as the type of entry.
Address Displays the IP addresses assigned to the host.
Example
DellEMC# show hosts
Default domain is not set
Name/address lookup uses static mappings
Name servers are not set
Host Flags TTL Type Address
-------- ----- ---- ---- -------
ks (perm, OK) - IP 2.2.2.2
4200-1 (perm, OK) - IP 192.68.69.2
1230-3 (perm, OK) - IP 192.68.99.2
ZZr (perm, OK) - IP 192.71.18.2
Z10-3 (perm, OK) - IP 192.71.23.1
DellEMC#
Related
Commands
● traceroute — view the DNS resolution.
● ip host — configure a host.
750 IPv4 Routing