PRTG Manual: Define IP Address Ranges

In some setting fields, you can either enter a host name or a single IP address, or you can define IP address ranges. These are available, for example, for xFlow and Packet Sniffer sensors and for probe connection settings. PRTG follows a common syntax for IP address ranges.

i_square_cyanFor the supported syntax of the automatic network discovery functionality in PRTG, see section Add an Auto-Discovery Group.

Available Options

Option

Description

Syntax

Examples

Simple

Enter a fixed IP address.

a.b.c.d

10.0.10.9

Hostname

Enter a hostname. PRTG resolves it to an IP address in your network.

hostname

device-xyz

Hostmask

Enter a hostmask. A hostmask defines the relevant bits of the IP address.

i_round_redValid hostmasks are /0 - /32 for IPv4 and /0 - /128 for IPv6.

a.b.c.d/h or a.b.c.d/e.f.g.h

10.0.0.0/24

Range

Enter an IP address range. Replace each letter of a, b, c, d with either

  • * (asterisk) for any value; corresponds to 0-255
    or
  • x-y for any range between 0 and 255.

a.b.c.d

10.0.0.1-20 or 10.*.0.* or 10.0.0-50.*

Visualization of Lookup Channels