10. If you want to discover devices connected to a specific router or on a specific subnet of
your network, complete the following procedure:
Only one selection method may be used per defined discovery.
a. Click Subnets in the Selection Method menu.
b. If you want to discover on a specific subnet, click Add a New Subnet, provide both a
Subnet Address and a Subnet Mask for the desired subnet, and then click Add.
Note: Repeat this step for each additional subnet you want to poll.
c. If you want to discover devices using a seed router, click Add a Seed Router, provide the
IP address of the Router, and then click Add.
Repeat this step for each additional seed router you want to use.
Network Sonar reads the routing table of the designated router and offers to discover
nodes on the Class A network (255.0.0.0 mask) containing the seed router and, if you are
discovering devices for an SolarWinds NPM installation, the Class C networks
(255.255.255.0 mask) containing all interfaces on the seed router, using the SNMP
version chosen previously on the SNMP Credentials page.
Networks connected through the seed router are NOT automatically selected for
discovery.
d. Confirm that all networks on which you want to conduct your network discovery are checked,
and then click Next.
11. If you already know the IP addresses or hostnames of the devices you want to discover and
include in the Orion Platform database, complete the following procedure:
a. Click Specific Nodes in the Selection Method menu.
b. Type or paste in the IP addresses or hostnames of the devices you want to discover for
monitoring into the provided field.
Note: Type only one IP address or hostname per line. For more information on using a seed
file, see "Importing a List of Nodes Using a Seed File". For information on using the discovery
Ignore List, see "Using the Discovery Ignore List".
c. Click Validate to confirm that the provided IP addresses and hostnames are assigned to
SNMP-enabled devices.
d. If you have provided all the IP addresses and hostnames you want to discover, click
Next.
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