Routers and Subnets
When the Routers and Subnets checkbox is
enabled, any discovered routers are included in
discovery results. In addition, if Discovery has
SNMP access to a discovered router, its routing
tables are read, and the next hop routers are
added to the Discovery list. If any local subnets
are available in the routing tables, these are also
added to the Subnets list. This process
continues until all the available SNMP
credentials are tried for the added routers.
NOTES: Discovery does not sweep every dis-
covered subnet; discovered subnets are only
added to the subnets list. To perform
discovery in a specific subnet, see Extended
Ranges above.
If another site has routers you want to
discover using this process but there isn’t a
local next hop link from this site, you can
add one of the routers of that site to
discovery. The process then runs from that
router and finds the routers on that site as
well. Add the subnet of the router or just the
Discovery App
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