Extreme Networks EPICenter Guide Manual page 68

Managing your Network Assets
Valid wildcard characters are *, ?, and - (dash):
*
acts as a wildcard for the entire octet (0-255).
? is a wildcard for a single digit (0-9).
- lets you specify a range for any octet. You can use this in more than one octet. Note that you
cannot combine the dash with another wildcard in the same octet. The following are some examples
of using wildcard characters in an IP address
10.203.0.*
10.203.?.??
10.203.0.1? or 10.203.0.10-19
10.203.0-2.10-30
The subnet mask can also be used to specify a subnet not on the octet boundary: for example, specifying
an IP address of 10.203.16.0 with a mask of 22 will expand to the range 10.203.16.1 - 10.203.19.254, a
range of 1022 addresses.
The ranges specified through the use of wild cards and the subnet mask interact in that the two
specifications are combined with an "and" conjunction. This means that the more restrictive of the
specifications will be the one to take effect.
IP addresses are processed prior to starting the discovery, and IP addresses that contain 255's in the
host portion are eliminated. This is based on the IP address as well as the subnet mask.
The EPICenter Discovery dialog lets you create a Discovery request that combines multiple discovery
specifications. This means that within a single discovery operation you can have EPICenter discover
devices in different address ranges, or search using several different read community strings, for
example.
Figure 28 shows an example of a set of device discovery criteria that will all be used during a single
discovery operation.
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polls 10.203.0.0 through 10.203.0.255
polls 10.203.0.0 through 10.203.9.99
both specify the same range: 10.203.0.10 through 10.203.0.19
polls
10.203.0.10 through 10.203.0.30
10.203.1.10 through 10.203.1.30
10.203.2.10 through 10.203.2.30
EPICenter Concepts and Solutions Guide