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Subnet agent

5 Jul 2016


With Secomea release 7.0 the SiteManager has been extended with new Subnet Agent
The release includes the new Generic Subnet Agent that provides access to a range of IP addresses defined by a subnet, rather than just individual addresses defined by specific device agents. This means you can access entire network segments and only allocate a single agent on the SiteManager.

The Subnet Agent supplements the existing network Agent types that count the generic and vendor-specific Agents for accessing specific IP devices. It also supplements the Layer2 Agent that provides access to the physical network of the remote device. The Subnet Agent thereby completes the methods and flexibility for accessing network devices.

“The Subnet Agent is intended for larger installations, where certain users should have access to entire subnets without having to create individual agents for each IP address. By combining the Subnet Agent with dedicated IP address specific Agents, we accommodate many different access needs on the same SiteManager”, says Secomea CTO Peter Hansen. “Additionally, the Subnet Agent is supported on the SiteManager Embedded software version, which essentially expands its limit of 10 concurrent IP devices. A Subnet Agent only consumes one Agent of the product, but similar to a standard VPN tunnel. That agent allows access for instance to all 254 IP addresses of a Class C network”

Technical details on the Subnet Agent’s flexible configuration
Although allowing access to entire IP ranges, you still have the possibility to limit its capabilities to, for example, only allowing certain ports, or only TCP and/or UDP traffic, or to enable or disable UDP broadcast from devices to the LinkManager end, or from the LinkManager to the devices.

The Subnet Agent allows you to segment the access. For example the standard configuration for accessing a Class C subnet would be, which would provide access to all IP addresses in the range – But you can mask to smaller a segment, such as, which would provide access to addresses in the range –

By default, all TCP and UDP ports are open for the defined subnet. You can, however, narrow the accessible ports to single ports, ranges or a combination of both, such as: 23,80,5000-5010.

Contact your local representative to learn more about details and availability

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