IP Scanner
With the IP Scanner you can scan for active devices based on the hostname or in IP ranges that are reachable via ICMP or have a common TCP port open.
Example inputs
| Host | Description |
|---|---|
10.0.0.1 | Single IP address (10.0.0.1) |
10.0.0.100 - 10.0.0.199 | All IP addresses in a given range (10.0.0.100, 10.0.0.101, ..., 10.0.0.199) |
10.0.0.0/23 | All IP addresses in a subnet (10.0.0.0, ..., 10.0.1.255) |
10.0.0.0/255.255.254.0 | All IP addresses in a subnet (10.0.0.0, ..., 10.0.1.255) |
10.0.[0-9,20].[1-2] | Multiple IP addresses like (10.0.0.1, 10.0.0.2, 10.0.1.1, ...,10.0.9.2, 10.0.20.1) |
borntoberoot.net | Single IP address resolved from a host (10.0.0.1) |
borntoberoot.net/24 | All IP addresses in a subnet resolved from a host (10.0.0.0, ..., 10.0.0.255) |
borntoberoot.net/255.255.255.0 | All IP addresses in a subnet resolved from a host (10.0.0.0, ..., 10.0.0.255) |
Multiple inputs can be combined with a semicolon (;).
Example: 10.0.0.0/24; 10.0.[10-20]1
Toolbar
| Button | Description |
|---|---|
| Detect local subnet | Populates the host field with the IP address and subnet mask of the current network interface to scan the local subnet |
The local IP address (and subnet mask) is determined by trying to route to a public IP address. If this fails (e.g.
no network connection), NETworkManager iterates over active network adapters and selects the first valid IPv4 address,
with link-local addresses (169.254.x.x) given lower priority.
Context menu
Right-clicking a result allows forwarding device information to another tool (e.g. Port Scanner, Remote Desktop), creating a new profile, or executing a custom command.
| Action | Description |
|---|---|
| Copy | Copies the selected information to the clipboard |
| Export... | Exports the selected or all results to a file |
Profile
Inherit host from general
Inherit the host from the general settings.
Type: Boolean
Default: Enabled
Host
Hostname or IP range to scan for active devices.
Type: String
Default: Empty
Example:
10.0.0.0/24; 10.0.[10-20].1server-01.borntoberoot.net
See also the IP Scanner example inputs for more information about the supported host formats.
Settings
Show unreachable IP addresses and ports
Show the scan result for all IP addresses and ports including the ones that are not active.
Type: Boolean
Default: Disabled
Attempts
Number of times an ICMP request is retried for each IP address if the request has timed out.
Type: Integer [Min 1, Max 10]
Default: 2
Timeout (ms)
Timeout in milliseconds for each ICMP request, after which the packet is considered lost.
Type: Integer [Min 100, Max 15000]
Default: 4000
Buffer
Size of the buffer for each ICMP request in bytes.
Type: Integer [Min 1, Max 65535]
Default: 32
Resolve hostname
Resolve the hostname (PTR) for each IP address.
Type: Boolean
Default: Enabled
Scan ports
Scan each IP address for open TCP ports.
Type: Boolean
Default: Enabled
Ports
List of TCP ports to scan for each IP address.
Type: String
Default: 22; 53; 80; 139; 389; 636; 443; 445; 3389
Multiple ports and port ranges can be combined with a semicolon (e.g. 22; 80; 443). Only common and known ports should be scanned to check if a host is reachable. Use the Port Scanner for a detailed port scan.
Timeout (ms)
Timeout in milliseconds after which a port is considered closed / timed out.
Type: Integer [Min 100, Max 15000]
Default: 4000
Scan for NetBIOS
Scan each IP address for NetBIOS information.
Type: Boolean
Default: Enabled
Timeout (ms)
Timeout in milliseconds after which a NetBIOS request is considered lost.
Type: Integer [Min 100, Max 15000]
Default: 4000
Resolve MAC address and vendor
Resolve the MAC address and vendor for each IP address.
Type: Boolean
Default: Enabled
The MAC address is resolved via ARP (IPv4) or NDP (IPv6) from the neighbor cache. If no entry is found there, NetBIOS is used as a fallback. Because ARP and NDP are link-layer protocols, the device must be in the same subnet as the local machine.
Custom commands
Custom commands that can be executed with a right click on the selected result.
Type: List<NETworkManager.Utilities.CustomCommandInfo>
Default:
| Name | File path | Arguments |
|---|---|---|
| Edge | cmd.exe | /c start microsoft-edge:http://$$ipaddress$$/ |
| Edge (https) | cmd.exe | /c start microsoft-edge:https://$$ipaddress$$/ |
| Windows Explorer (c$) | explorer.exe | \\$$ipaddress$$\c$ |
In the arguments you can use the following placeholders:
| Placeholder | Description |
|---|---|
$$ipaddress$$ | IP address |
$$hostname$$ | Hostname |
Right-click on a selected custom command to edit or delete it.
You can also use the Hotkeys F2 (edit) or Del (delete) on a selected custom command.
Max. concurrent host threads
Maximum number of threads used to scan for active hosts (1 thread = 1 host / IP address).
Type: Integer [Min 1, Max 512]
Default: 256
Too many simultaneous requests may be blocked by a firewall. You can reduce the number of threads to avoid this, but this will increase the scan time.
Too many threads can also cause performance problems on the device.
This setting only changes the maximum number of concurrently executed threads per host scan. See also the General settings to configure the application-wide thread pool.
Max. concurrent port threads
Maximum number of threads that are used to scan for open ports for each host (IP address).
Type: Integer [Min 1, Max 10]
Default: 5
Too many simultaneous requests may be blocked by a firewall. You can reduce the number of threads to avoid this, but this will increase the scan time.
Too many threads can also cause performance problems on the device.
This setting only changes the maximum number of concurrently executed threads per port scan. See also the General settings to configure the application-wide thread pool.