VMware VCENTER APPLICATION DISCOVERY MANAGER 6.1 - REPOSITORY, User Manual

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VMware, Inc. 37
Chapter 5 Discovery
Configuring Standard OS Agents
To avoid agent installation, ADM performs Detail Discovery using only standard network protocols. Support
for these protocols is built into most modern operating systems, and so no special software needs to be
installed. However, a moderate amount of configuration work might be needed to make network hosts
respond to Detail Discovery queries made by ADM. Whether and how much configuration work is needed
depends on the operating systems used, their existing configuration, and the standard network protocol used
for Detail Discovery. “Detail Discovery Protocols” on page 37 describes the standard protocols and the
necessary configuration.
Dealing with Firewalls
When deploying Detail Discovery, firewalls, when placed between the ADM appliance and the hosts that it is
discovering, might block the network protocols used for Detail Discovery, and thus prevent Detail Discovery
from taking place. The following solutions deals with the firewall:

Open the necessary ports in the firewall, if only just for client ‐ side use by the IP address assigned to the
ADM appliance. The relevant ports are typically:

For SNMP, UDP/161

For Telnet, TCP/22 for SSH and TCP/23

For WMI access, “WMI Deployment Recommendations” on page 41 and “Firewall Settings ” on
page 41 include details on firewall settings.

For VI ‐ SDK, TCP/443 for HTTPS

Deploy another Collector appliance on the other side of the firewall. This extra device communicates with
the Aggregator appliance. This communication uses standard HTTPS (port 443) or HTTP (port 80) and
has to be open in the firewall for connections initiated by the Collector into the Aggregator. The default is
HTTPS on port 443. There might be multiple Collectors installed at various locations in the network.
Checking for Results
After Detail Discovery policies have been defined, check the Detail Discovery dashboard for the discovery
status of each policy and each host. Click Detail Discovery to view the dashboard.
Detail Discovery Protocols
This section describes the network protocols used for Detail Discovery: SNMP, SSH, Telnet, WMI, and VI ‐ SDK.
The VMware vCenter Application Discovery Manager Discovery Coverage Spreadsheet contains a list of systems on
which ADM has been tested. ADM supports the systems that are listed in this document.
Discovery data obtained from more than one protocol is reconciled according to the priority order below. More
information on detail discovery protocols is provided for:
1 “SSH” on page 38
2 “SNMP” on page 39
3 “WMI” on page 40
4 “Telnet” on page 43
5 “VI ‐ SDK” on page 45
6 Listener (passive)
7 IP Discovery (passive)